ProBlocker
What ProBlocker is
ProBlocker is a free, open-source browser extension that blocks ads, pop-ups, and trackers by stopping matching network requests before data transfers. It can block YouTube pre-roll, mid-roll, overlay, and bumper ads before download, as well as known malware distribution domains, scam endpoints, and cryptocurrency-mining scripts. It uses browser request-blocking APIs and draws on EasyList, EasyPrivacy, uBlock Origin filters, and custom YouTube rules, updated daily.
The maker says blocking happens locally, with no user data collected or analytics calls, and that the extension does not read page content, passwords, or form entries for collection. ProBlocker does not make paid exceptions through Acceptable Ads. Downloads are listed for Chrome, Firefox, Edge, Brave, Opera, and Vivaldi; Safari is unsupported because its Content Blocker API limits full network-level blocking. No account is required. The plan is free forever, with no premium tier or trial.
Who it suits
ProBlocker suits people looking for browser-based ad, tracker, and certain threat blocking without an account or payment. It is for users of the listed browsers, not Safari.
What it does well
- Blocks several types of YouTube ads before download.
- Blocks known malware domains and scam endpoints.
- Filter sources are updated daily.
- No account is required.
What to know first
- Safari is not supported.
- Available as a browser extension only.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| ProBlocker | Free forever · No premium tier · No trial · No account required | Free |
As theproblocker.com lists them, read 11 Oct 2026. The maker's own page has the final word.
Verdict
ProBlocker offers network-level blocking and lists six supported browsers, with no paid tier or account requirement. Safari users will need another option, since its blocking API is not supported.
Facts from ProBlocker's own pages
- Acceptable Ads
- ProBlocker says it does not participate in Acceptable Ads and blocks matching ads without paid exceptions. · theproblocker.com, 11 Oct 2026
- Blocking method
- It uses Chromium's declarativeNetRequest API or Firefox's webRequest API to cancel matching requests before data transfers. · theproblocker.com, 11 Oct 2026
- Browser support
- major-browsers · theproblocker.com, 20 Sept 2026
- Device coverage
- browser-only · theproblocker.com, 20 Sept 2026
- Filter lists
- Its filter sources include EasyList, EasyPrivacy, uBlock Origin filters, and custom YouTube rules, with daily updates. · theproblocker.com, 11 Oct 2026
- Free plan
- Yes · theproblocker.com, 20 Sept 2026
- Other protections
- It blocks known malware distribution domains, scam endpoints, and cryptocurrency mining scripts. · theproblocker.com, 11 Oct 2026
- Permissions
- The maker says blocking happens locally and the extension does not read page content, passwords, or form entries for collection. · theproblocker.com, 11 Oct 2026
- Privacy
- The maker says the extension collects no user data and makes no analytics calls; it downloads filter-list updates from public URLs. · theproblocker.com, 11 Oct 2026
- Safari support
- Safari is not supported because its Content Blocker API limits full network-level blocking. · theproblocker.com, 11 Oct 2026
- Support
- The help center offers setup and troubleshooting guides and directs users to contact support or open a GitHub issue. · theproblocker.com, 11 Oct 2026
- Supported browsers
- The download page lists Chrome, Firefox, Edge, Brave, Opera, and Vivaldi. · theproblocker.com, 11 Oct 2026
- What it does
- ProBlocker is a free, open-source browser extension that blocks ads, pop-ups, and trackers at the network level. · theproblocker.com, 11 Oct 2026
- Who builds it
- The About page identifies the maker as ProBlocker Inc. · theproblocker.com, 11 Oct 2026
- YouTube ads
- It blocks YouTube pre-roll, mid-roll, overlay, and bumper ads before they download. · theproblocker.com, 11 Oct 2026
Where ProBlocker stands on Freedom251
- Ad blockers#33 of 48