Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
The best browser extension is the one that solves a specific problem without asking for more access than it needs. An extension is software added to a browser to add or modify features. The 100 picks below are organized by task so you can install a focused set rather than all 100.
Browser catalogs, permissions, update status, privacy policies and free-versus-paid limits change. Treat every availability note as a prompt to verify the current listing, publisher and version in your browser before installing.
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“A Microsoft Edge extension is a small app that a developer creates to add or modify features of Microsoft Edge, to extend the user experience (UX) for end-users in a specialized way.” — Microsoft Edge documentation
Recommended: Crashes or Glitches? A Free Driver Scan Usually Finds the Culprit →Recommended: PC Feels Slow? A Free Scan Shows What's Dragging Windows Down →Recommended: Update Every Outdated Driver on Your PC in One Scan - Free →Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
How to choose and install an extension safely
- Use the official catalog. In Chrome, open the Chrome Web Store, select an extension, review its details and choose Add to Chrome. Chrome Help also recommends Enhanced Safe Browsing for additional protection when installing extensions.
- Check the publisher and listing history. In Edge, use Microsoft Edge Add-ons or the Chrome Web Store. Read ratings and written feedback, look for recent updates and confirm that the publisher name matches the developer’s site.
- Read every permission request. “Read and change all your data on websites” is broad access. Prefer an extension that works with access limited to the sites or features you actually need.
- Review site access after installation. Edge lets you review and change an extension’s site permissions from Extensions > the extension’s Details page. Chrome provides comparable controls from Extensions > Manage extensions.
- Install the minimum set. Two blockers, password managers or tab managers can conflict. Keep one primary tool in each role, test it, and remove extensions you no longer use.
Chromium extensions can often be ported between compatible browsers, but a port does not guarantee identical features, permissions or support. Bitwarden, for example, says its extension supports the two most recent versions of Chrome, Firefox, Opera and Edge; Safari support is packaged with its macOS app. That is a Bitwarden-specific policy, not a universal browser rule.
#1 Best Overall
Sale
Magicmoon 2-Pack 24 Inch Computer Privacy Screen Filter for 16:9 Monitor
- Compatible Model(s): Magicmoon brand filter only for 24 inch -diagonally measured - widescreen monitor - aspect ratio 16:9 - filter size: width: 20 15/16", Height: 11 13/16" (531mm x 298mm)
- Superior Privacy: The computer privacy filter makes the screen appear dark when looking at it from an angle (the angle is about 30 to 60 degree), but bright when looking directly at it. To change the privacy level - simply adjust your monitor’s brightness accordingly
- Eye and Screen Protection: Privacy Filter does not only protect your private life but also protects your eyes by blocking 30% of blue light , blocking the harmful blue light between 380 to 495 nm, it filters out the blue light and relieves eye strain
- Perfect For Open Workspaces: Great for maintaining screen privacy in open work spaces
- Includes Two Options: Option 1 uses clear adhesive strips that securely attach to any computer screen. Option 2 (for computer screens with a raised bezel only) uses slide mount tabs that easily stick to the display frame, allowing you to slide the privacy screen filter on and off as needed
How to read the 100 picks
Each row gives a primary use, an availability check, an access or privacy point to inspect and a practical alternative. “Verify listing” means you should confirm the current store entry and minimum browser version before deployment. A free label does not mean unlimited use: many services reserve advanced features, sync, history or higher quotas for paid plans.
Quick Recap
SaleBestseller No. 2
Best Value
Peslv 2-Pack 27 Inch 16:9 Computer Monitor Privacy Screen, WxH:598 * 337mm
- 【PRIVACY FILTER DIMENSIONS】- Width: 23 9/16" (598 mm), Height: 13 1/4" (337 mm), Diagonal: 27" (685.8 mm) - Peslv Dark 27 inch Privacy Screen Filter is engineered to be compatible with 27in Dell, HP, Samsung, Lenovo, LG, Acer, ASUS, Toshiba, ViewSonic, Aoc, Sceptre, PHILIPS, ViewSonic and other brands monitors with 16:9 aspect ratio. Please verify your computer screen's width and height measurements before ordering. It is not recommended to select a size based solely on the diagonal.
- 【HIGH-CLASS PRIVACY ABLE】Peslv collected suggestions from more than 2000 computer users and performed 22188 anti-peep angle corrections on the micro-blind optical technology to ensure that any line of sight beyond +-30° facing the screen will be shielded. With a Peslv computer privacy screen 27 inch, Protect the privacy of your computer monitor screen and no longer leak any confidential data.
- 【2 MOUNTING OPTIONS FOR EASY INSTALLATION】The Peslv 27 inch privacy screen for monitor supply 2 installation options, Various installation options, are Compatible with both 27" computer monitors with raised bezels and full-screen 27" computer monitors without raised bezels, and convenient installation allows you to complete the installation in 10 seconds. NOTE: Monitors without raised bezels are only available with mounting option 2.
- 【EXCLUSIVE DOUBLE-SIDED TECHNOLOGY】27-inch monitor privacy filter has a double-sided surface technology developed by Peslv. Matte or Glossy. With the matte surface facing outward, you can experience the advanced AG anti-glare technology from Germany while maintaining a 30-degree privacy angle, softening the strong light outdoors, and making the screen content clearly visible. With the glossy side facing outward, you can get a super anti-peeping effect with a privacy angle of 26 degrees.
- 【PROTECT SCREEN ALSO EYES】Filtering optical materials imported from Japan can reduce 92% of blue light and 98% of UV light, and filter all harmful light emitted from the screen to protect your eyes. The high-transparent and reinforced built-in protective layer not only presents high-definition picture quality but also protects your screen from scratches. Hurry up and place an order, own a privacy screen for a computer monitor 27 inch, and protect your monitor screen and your eyes.
Rank #4
Sale
Computer Privacy Screen Filter for 24 Inch 16:9 Aspect Ratio Monitor
- Privacy Screen Filter Size: If the visible area of your display has the following dimension: Width x Height (Exclude Frame/Arrow 1 to 3 mm errors): 20 15/16" x 11 13/16" (532 mm x 299 mm), then this filter is good for you. Very Important to double check your screen's Width and Height excluding frame before ordering. It's not recommended to make your selection based solely on your screen's diagonal size
- Left and Right Privacy: Not block visibility directly behind you, regardless of distance. The privacy filter makes the screen appear dark when looking at it from an angle (left and right 30 to 180 degree), but clear when looking directly at it. To change the privacy levels, simply adjust your monitor's brightness level accordingly
- Matte and Glossy Sides: It's a reversible privacy screen filter, giving you the flexibility to choose glossy or matte finish. The matte side will have less glare, however the glossy side will have stronger privacy
- Perfect for Open Workspaces: Ensure your working space is bright and well lit. Privacy screens do not work in dimly lit areas
- Two Installation Option: Option 1 uses clear double side adhesive strips that securely attach to any computer screen. Option 2 (for computer screens with a raised bezel only) uses slide mount tabs that easily stick to the display frame, allowing you to take out the privacy screen filter easily as needed
Rank #3
![[2 Pack] 24 Inch Computer Privacy Screen Filter for 16:9 Widescreen Monitor](https://m.media-amazon.com/images/I/41SBKw3J4ML._SL160_.jpg)
[2 Pack] 24 Inch Computer Privacy Screen Filter for 16:9 Widescreen Monitor
- 【24 PRIVACY FILTER DIMENSIONS】 Width: 20 15/16" (20.9 inches/532 mm), Height: 11 13/16" (11.8 inches/299 mm) - 16:9 Aspect Ratio. Mamol computer privacy filters are designed to be perfectly compatible with HP, Samsung, Dell, Lenovo, Acer, Asus, LG, ViewSonic and other brands of monitors. Please check the width and height dimensions of your computer screen before ordering. If you have any questions about the dimensions, please contact us.
- 【ENHANCED PRIVACY PROTECTION】Mamol 24 inch computer privacy filter keeps your electronic information confidential, making it excellent for use in high traffic areas. the computer privacy screen 24 inch is designed with advanced microlouver technology to block visibility at around 30 degrees and black out screens completely near 60 degrees.
- 【EYES PROTECTION】 This blackout privacy screen greatly reduces eye strain and minimizes potential hazards to vision. It filters 99.9% of UV rays and suppresses 98% of blue light. As a reversible 24-inch privacy screen filter: The glossy side of the protector provides extra clarity and greater privacy, and the matte side minimizes glare and distracting reflections. Satisfy your different daily uses as needed.
- 【BETTER HD CLARTIY】Mamol 24 inch computer privacy screen Shield adds an extra layer of AR Ultra HD light transmission compared to others. It maintains the high definition of the screen without sacrificing too much screen brightness. It won't reduce the brightness and cause eye fatigue because of the privacy screen installed on the screen.
- 【ANTI SCRATCH & WASHABLE 】Our privacy anti-glare Monitor film has a surface enhancement layer to protect the privacy filter from scratches and fingerprints. It is washable and reusable. Even after prolonged use, you will get a brand new privacy screen for your desktop computer monitor after cleaning. Very Durable!
Rank #2
Sale
SightPro 24 Inch 16:9 Computer Privacy Screen Filter for Monitor - Privacy Shield and Anti-Glare Protector
- 【Privacy Filter Dimensions】- Width: 20 15/16" (532 mm), Height: 11 13/16" (299 mm), Diagonal: 24" (609.6 mm) - SightPro Blackout Privacy Screen Filter is engineered to be compatible with HP, Dell, Samsung, Lenovo, LG, Acer, ASUS, ViewSonic, and other monitor brands. Please verify your computer screen's width and height measurements before ordering. It's not recommended to make your selection based solely on your computer screen's diagonal size.
- 【Two Attachment Options】- Installs in minutes. Option 1 uses clear adhesive strips that securely attach to any computer screen. Option 2 (for computer screens with a raised bezel only) uses slide mount tabs that easily stick to the display frame, allowing you to slide the privacy screen filter on and off as needed.
- 【Superior Privacy and Anti Glare】- Our advanced multi-layered film filter blacks out your computer screen when viewing from the side, while maintaining a crystal clear screen straight-on. It also protects your eyes from harmful glare, UV, and blue light. [Note: It does not block visibility directly behind you, regardless of the distance.]
- 【Perfect for Travel and Open Workspaces】- Our computer screen privacy filter is the ideal solution for healthcare providers, mobile workers, commuters, students, and business travelers. Now you can stay compliant and safeguard sensitive corporate information while working in airplanes, subways, airports and public areas.
- 【Package Contents】- Each package includes one privacy screen shield filter, two sets of clear adhesive strips, two sets of slide mount tabs, and a microfiber cleaning cloth. Buy with confidence – located in the US, Sight Pro specializes in providing best-in-class privacy solutions to individuals, small businesses, corporations, government, and educational institutions. Our privacy screens are Section 889 and TAA compliant.
1. Privacy and tracker control
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| uBlock Origin | Blocking ads, trackers and page scripts | Chrome/Edge/Firefox listings; verify version | Needs page access to filter requests; inspect filter-list updates | AdGuard AdBlocker |
| AdGuard AdBlocker | Content blocking with configurable filters | Chrome/Edge/Firefox listings; verify version | Broad page and network access is expected; review enabled filters | uBlock Origin |
| Ghostery | Tracker discovery and blocking | Chrome/Edge/Firefox listings; verify version | Review telemetry choices and tracker-scanning permissions | Privacy Badger |
| Privacy Badger | Automatic tracker blocking | Chrome/Edge/Firefox listings; verify version | Needs page access; inspect learning and exception settings | Ghostery |
| DuckDuckGo Privacy Essentials | Tracker blocking and privacy grades | Chrome/Edge/Firefox listings; verify version | Check page access and optional search or telemetry settings | Privacy Badger |
| ClearURLs | Removing tracking parameters from links | Chrome/Edge/Firefox listings; verify version | Link-modification access is central; review rule exceptions | Decentraleyes |
| Decentraleyes | Local delivery of common web libraries | Chrome/Firefox listings; Edge listing varies | Requires page requests access; verify library and update activity | ClearURLs |
| Cookie AutoDelete | Deleting cookies when tabs close | Firefox/Chrome listings; Edge listing varies | Cookie and tab access is required; whitelist sites deliberately | built-in browser cookie controls |
| NoScript | Granular JavaScript and plugin control | Firefox listing; Chromium availability varies | Very broad page controls; expect site breakage until trusted domains are allowed | uBlock Origin |
| Avast Online Security & Privacy | Web reputation and browser security warnings | Chrome/Edge listings; Firefox availability varies | Review reputation, browsing-data and marketing settings | DuckDuckGo Privacy Essentials |
2. Passwords and identity
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| Bitwarden Password Manager | Passwords, passkeys and sensitive information | Chrome, Firefox, Opera and Edge: Bitwarden says its two most recent versions are supported; verify exact version | Vault and form-fill access are sensitive; confirm autofill and telemetry settings | 1Password |
| 1Password | Vault-based passwords and passkeys | Chrome/Edge/Firefox listings; verify version | Needs vault, tab and form access; use the vendor’s security documentation | Bitwarden |
| Proton Pass | Encrypted passwords and aliases | Chrome/Firefox/Edge listings; verify version | Review vault and autofill permissions and account recovery options | Bitwarden |
| Dashlane | Password autofill and identity storage | Chrome/Edge/Firefox listings; verify version | Form and page access is required; inspect plan limits before relying on sync | 1Password |
| NordPass | Password and passkey autofill | Chrome/Edge/Firefox listings; verify version | Review vault, tab and form-fill access | Bitwarden |
| Keeper Password Manager | Enterprise and personal vaults | Chrome/Edge/Firefox listings; verify version | Autofill access is powerful; check organization policies on managed devices | 1Password |
| RoboForm | Long-standing form filling | Chrome/Edge/Firefox listings; verify version | Needs broad form and page access; review sharing and sync controls | Dashlane |
| Enpass | Local-first vault management | Chrome/Edge/Firefox listings; verify version | Inspect how the extension connects to the desktop vault | KeePassXC-Browser |
| KeePassXC-Browser | Connecting KeePassXC desktop vaults | Chrome/Firefox/Edge listings; verify version | Requires native-app connection and page access; install only from the official project | Enpass |
| Microsoft Autofill | Microsoft account password and address filling | Edge/Chrome listings; other browsers vary | Review Microsoft account sync and form permissions | Bitwarden |
3. Writing and research
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| Grammarly | AI writing and grammar checking | Chrome/Edge/Firefox listings; verify version | Text access can include sensitive drafts; disable sites that should be private | LanguageTool |
| LanguageTool | Multilingual spelling and style checks | Chrome/Edge/Firefox listings; verify version | Review text-processing and account-sync settings | Microsoft Editor |
| Microsoft Editor | Spelling, grammar and clarity suggestions | Edge/Chrome listings; Firefox availability varies | Check Microsoft account and page-text access | LanguageTool |
| QuillBot | Paraphrasing and rewriting assistance | Chrome/Edge/Firefox listings; verify version | Do not submit confidential text without reviewing data-use terms | Grammarly |
| ProWritingAid | Long-form style and readability feedback | Chrome/Edge listings; verify version | Review document access and account requirements | LanguageTool |
| Hemingway Editor | Readability and sentence complexity checks | Chrome/Edge listings; verify version | Inspect whether text leaves the browser for analysis | ProWritingAid |
| Zotero Connector | Saving sources and citation metadata | Chrome/Firefox/Edge listings; verify version | Page and bibliographic metadata access; verify the target Zotero library | Mendeley Web Importer |
| Readwise Highlighter | Highlighting and syncing web passages | Chrome/Firefox/Edge listings; verify version | Review page-reading and cloud-sync permissions | Hypothesis |
| Evernote Web Clipper | Saving pages, screenshots and notes | Chrome/Edge/Firefox listings; verify version | Page and account access are required; set clipping defaults carefully | Notion Web Clipper |
| Saving articles for later reading | Chrome/Firefox/Edge listings; verify version | Review page URL, account and personalization settings | Raindrop.io |
4. Productivity and focus
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| OneTab | Converting open tabs into a list | Chrome/Edge/Firefox listings; verify version | Needs tab and browsing-history access to save URLs | Session Buddy |
| Session Buddy | Saving and restoring windows | Chrome/Edge/Firefox listings; verify version | Review tab, window and history permissions | OneTab |
| Workona | Organizing workspaces and project tabs | Chrome/Edge/Firefox listings; verify version | Cloud workspace sync can expose URLs; check team controls | Toby |
| Toby | Visual tab collections | Chrome/Edge listings; Firefox availability varies | Tab and storage access; review account sync | Workona |
| StayFocusd | Limiting distracting sites | Chrome/Edge listings; verify version | Needs site and schedule permissions; protect settings with a passcode | LeechBlock NG |
| LeechBlock NG | Detailed blocking schedules | Firefox/Chrome/Edge listings; verify version | Broad site access is intentional; audit block and allow lists | StayFocusd |
| Momentum | New-tab focus, tasks and inspiration | Chrome/Firefox/Edge listings; verify version | New-tab, account and optional location access; disable extras you do not need | Todoist |
| Todoist | Capturing tasks from the browser | Chrome/Firefox/Edge listings; verify version | Account and page access; check workspace sharing | Google Calendar |
| Google Calendar | Scheduling and event capture | Chrome/Edge/Firefox listings; verify version | Calendar and account permissions; use a separate browser profile if needed | Todoist |
| Vimium | Keyboard navigation and commands | Chrome/Firefox/Edge listings; verify version | Page-keyboard access is broad; exclude banking and sensitive sites | built-in keyboard shortcuts |
5. PDFs and documents
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| Adobe Acrobat | Editing, converting and signing PDFs | Chrome/Edge listings; Firefox availability varies | PDF and cloud-document access; review sign-in and sharing settings | Smallpdf |
| Kami | Classroom PDF annotation | Chrome/Edge/Firefox listings; verify version | Document and education-account access; inspect shared-file permissions | Hypothesis |
| Smallpdf | Browser PDF conversion and compression | Chrome/Edge/Firefox listings; verify version | Documents may be uploaded for processing; avoid confidential files unless policy permits | Sejda PDF |
| Sejda PDF | Editing, splitting and signing PDFs | Chrome/Edge listings; verify version | Check upload, retention and free-use limits | Smallpdf |
| PDFescape | Form filling and basic PDF edits | Chrome/Firefox/Edge listings; verify version | Review document upload and account requirements | DocHub |
| DocHub | PDF forms and e-signatures | Chrome/Edge/Firefox listings; verify version | Signature and cloud-storage permissions deserve extra scrutiny | Adobe Acrobat |
| Print Friendly & PDF | Removing clutter before printing | Chrome/Firefox/Edge listings; verify version | Reads page content; inspect generated PDF destination | browser print dialog |
| PDF24 Tools | Quick PDF conversion utilities | Chrome/Edge/Firefox listings; verify version | Check whether a task is processed locally or uploaded | Smallpdf |
| Hypothesis | Web and PDF annotation | Chrome/Firefox/Edge listings; verify version | Page-reading and account access; choose private or public annotations deliberately | Kami |
| Mendeley Web Importer | Capturing papers and citation data | Chrome/Firefox/Edge listings; verify version | Reads publication metadata and account library; verify sync destination | Zotero Connector |
6. Translation and accessibility
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| Immersive Translate | Websites, PDFs, e-books, video and bilingual subtitles | Chrome/Edge/Firefox listings; verify version | Translation requires page or media text access; review provider and history settings | Google Translate |
| Google Translate | Quick page and phrase translation | Chrome/Edge/Firefox listings; verify version | Page text may be sent for translation; exclude confidential sites | DeepL |
| DeepL | High-quality multilingual translation | Chrome/Edge/Firefox listings; verify version | Review text-processing, account and plan limits | Google Translate |
| Mate Translate | Dictionary and translation pop-ups | Chrome/Edge/Firefox listings; verify version | Page-text access and optional account sync | Google Translate |
| Language Reactor | Learning languages with video subtitles | Chrome/Edge listings; verify version | Video and subtitle access; check supported streaming sites | Immersive Translate |
| Read Aloud | Text-to-speech for web pages | Chrome/Firefox/Edge listings; verify version | Page-reading access; choose a trusted speech engine | browser built-in read-aloud |
| Speechify | Natural-sounding text-to-speech | Chrome/Edge/Firefox listings; verify version | Review text processing, voice data and subscription limits | Read Aloud |
| Dark Reader | Dark themes and brightness control | Chrome/Firefox/Edge listings; verify version | Page-style access; disable on sites where colors or charts break | built-in dark mode |
| High Contrast | Stronger contrast and color inversion | Chrome/Edge listings; Firefox availability varies | Page-style access; test against images and charts | Dark Reader |
| Font Changer | Readable font and size adjustments | Chrome/Edge/Firefox listings; verify version | Page-style access; avoid extensions that request unrelated browsing data | browser zoom and font settings |
7. Shopping and travel
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| Honey | Automated coupons and rewards | Chrome/Edge/Firefox listings; verify version | Shopping-page and checkout access; review data-sharing and offer settings | Capital One Shopping |
| Rakuten | Cash-back offers | Chrome/Edge/Firefox listings; verify version | Reads shopping sites and applies referral tracking; review payout terms | RetailMeNot |
| Capital One Shopping | Price comparison and coupon alerts | Chrome/Edge/Firefox listings; verify version | Shopping and browsing access; inspect personalization controls | Honey |
| The Camelizer | Amazon price-history charts | Chrome/Firefox/Edge listings; verify version | Retail-page access; verify the supported regional storefront | Keepa |
| Keepa | Detailed Amazon price and sales history | Chrome/Firefox/Edge listings; verify version | Product-page access and optional account data; check region coverage | The Camelizer |
| PriceBlink | Price comparisons and coupons | Chrome/Edge/Firefox listings; verify version | Shopping-page access; review alerts and marketing choices | Capital One Shopping |
| RetailMeNot | Coupon and cash-back discovery | Chrome/Edge/Firefox listings; verify version | Checkout and shopping access; verify reward eligibility by country | Rakuten |
| Coupert | Coupons and cash back | Chrome/Edge/Firefox listings; verify version | Review checkout access, tracking and payout conditions | Honey |
| Currency Converter | Converting prices while browsing | Chrome/Firefox/Edge listings; verify version | Reads displayed prices; check exchange-rate source and update timing | built-in search conversion |
| Wanderlog | Collecting itinerary and travel links | Chrome/Edge/Firefox listings; verify version | Page, account and location permissions; disable location when unnecessary | Google Calendar |
8. Media and entertainment
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| Picture-in-Picture Extension by Google | Floating video windows | Chrome/Edge listings; Firefox has built-in picture-in-picture | Video and tab access; use the browser’s native control where available | built-in picture-in-picture |
| Enhancer for YouTube | YouTube playback and layout controls | Chrome/Firefox/Edge listings; verify version | Needs YouTube page access; review ad, theme and autoplay options | Magic Actions for YouTube |
| Video Speed Controller | Changing HTML5 video speed | Chrome/Firefox/Edge listings; verify version | Video-page access; exclude sites where controls interfere | Global Speed |
| SponsorBlock | Skipping community-marked sponsorships | Chrome/Firefox/Edge listings; verify version | YouTube access and community-segment requests; review privacy settings | Enhancer for YouTube |
| Return YouTube Dislike | Showing estimated dislike counts | Chrome/Firefox/Edge listings; verify version | YouTube page access and external API requests | Enhancer for YouTube |
| Magic Actions for YouTube | Player, theater and appearance controls | Chrome/Firefox/Edge listings; verify version | YouTube access; disable overlapping features with other YouTube tools | Enhancer for YouTube |
| Global Speed | One speed control across media sites | Chrome/Firefox/Edge listings; verify version | Media-page access; test compatibility with streaming services | Video Speed Controller |
| Volume Master | Per-tab volume amplification | Chrome/Edge/Firefox listings; verify version | Tab and media access; avoid clipping speakers or headphones | browser tab audio controls |
| Stream Recorder | Recording supported in-browser media | Chrome/Firefox/Edge listings; verify version | Media and download permissions; respect copyright and site terms | built-in screen recording |
| Trakt.tv | Tracking shows and films | Chrome/Firefox/Edge listings; verify version | Viewing-history and account access; review public-profile settings | IMDb Watchlist |
9. Developer and technical work
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| JSONView | Readable JSON in the browser | Chrome/Firefox/Edge listings; verify version | Reads JSON responses; avoid untrusted forks with extra permissions | built-in DevTools |
| ColorZilla | Eyedropper and CSS color inspection | Chrome/Firefox/Edge listings; verify version | Page-style and clipboard access; review clipboard behavior | built-in DevTools picker |
| React Developer Tools | Inspecting React component trees | Chrome/Firefox/Edge listings; verify version | Page and DevTools access; disable on sensitive production profiles | browser DevTools |
| Redux DevTools | Inspecting Redux state and actions | Chrome/Firefox/Edge listings; verify version | DevTools and page access can expose application state | browser DevTools |
| Vue.js devtools | Inspecting Vue applications | Chrome/Firefox/Edge listings; verify version | Page and DevTools access; use a development browser profile | browser DevTools |
| Wappalyzer | Identifying site technologies | Chrome/Firefox/Edge listings; verify version | Reads page and network signals; review telemetry options | BuiltWith |
| Lighthouse | Performance, accessibility and SEO audits | Chrome/Edge listings; DevTools is built in | Audits page content; results can include URLs and diagnostics | browser DevTools |
| Postman Interceptor | Capturing browser requests for API testing | Chrome/Edge listings; verify version | Very broad request and cookie access; use only in a controlled profile | Insomnia |
| Web Developer | CSS, forms, images and layout diagnostics | Chrome/Firefox/Edge listings; verify version | Broad page controls; disable when not debugging | browser DevTools |
| WhatFont | Identifying fonts on a page | Chrome/Firefox/Edge listings; verify version | Page-style access only should be sufficient; reject unrelated permissions | Fontanello |
10. Communication and workflow
| Extension | Best for | Browser availability check | Access and privacy check | Alternative |
|---|---|---|---|---|
| Checker Plus for Gmail | Desktop Gmail notifications and quick actions | Chrome/Firefox/Edge listings; verify version | Mailbox and notification access are highly sensitive; audit account scope | Gmail’s own notifications |
| Boomerang for Gmail | Scheduling and snoozing email | Chrome/Firefox/Edge listings; verify version | Mailbox access and message processing; review retention settings | Gmail scheduled send |
| Mailtrack | Email open and link tracking | Chrome/Edge/Firefox listings; verify version | Mailbox and recipient-tracking access; disclose tracking where required | Gmail read receipts |
| HubSpot Sales | CRM capture and email engagement | Chrome/Edge/Firefox listings; verify version | Mailbox, contacts and CRM data require organizational approval | Salesforce extension |
| Buffer | Scheduling social posts | Chrome/Firefox/Edge listings; verify version | Social-account and page access; review connected networks and team roles | Hootsuite |
| Hootsuite | Sharing and scheduling across social networks | Chrome/Firefox/Edge listings; verify version | Social posting permissions are powerful; remove unused accounts | Buffer |
| Notion Web Clipper | Saving pages into Notion databases | Chrome/Firefox/Edge listings; verify version | Page and Notion workspace access; select the destination carefully | Evernote Web Clipper |
| Raindrop.io | Bookmarking and tagging research | Chrome/Firefox/Edge listings; verify version | URL, page-title and account sync; check shared-collection visibility | |
| Nimbus Screenshot | Capturing and annotating screens | Chrome/Firefox/Edge listings; verify version | Screenshot and tab access; review cloud-upload defaults | Loom |
| Loom | Recording walkthroughs and async messages | Chrome/Edge/Firefox listings; verify version | Camera, microphone, screen and cloud permissions; stop sharing before sensitive data appears | Nimbus Screenshot |
When an extension causes trouble
- A site breaks: open the extension’s details page, restrict site access or pause it for that domain, then reload. Content blockers, script controls and page restylers are the usual causes.
- Pages become slow: disable overlapping blockers, coupon tools and media enhancers one at a time. Keep the extension that solves the problem with the fewest permissions.
- Unexpected pop-ups or redirects appear: remove the newest extension, review recently changed permissions and run the browser’s safety checks. Do not reinstall a clone merely because its name looks familiar.
- A password manager fills the wrong value: turn off autofill in competing managers, check the saved domain entry and keep only one primary autofill extension active.
- You no longer trust an extension: disable it, export any data you need, remove it, revoke connected-account access and change passwords if the extension handled sensitive credentials.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
