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In SingleFileZ’s options, go to Auto-save and enable “auto-save on tab removal.” That is the setting documented for saving a page when you close its tab.
Turn on auto-save when a tab closes
- Find the SingleFileZ button in your browser toolbar.
- Right-click the button and choose Options or Manage extension to open its options page. The label depends on the browser.
- Find the Auto-save section.
- Check “auto-save on tab removal.” SingleFileZ’s help describes this option as saving pages when closing a tab. SingleFileZ help
SingleFileZ warns that some frame contents may be missing if “remove frames” is enabled when saving on tab removal. This is a possibility, not a claim that frames will be missing from every saved page.
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Enable it only for particular tabs
If you do not want the behavior for every tab, use the SingleFileZ toolbar button’s context menu to activate auto-save for the current tab, unpinned tabs, or all tabs. The project help lists these scopes.
Do not confuse the save trigger with other options
- Auto-save on tab removal is the documented trigger for closing a tab.
- Auto-save on page unload and auto-save on tab discard are separate triggers. Choose the tab-removal option for the behavior in this guide.
- Auto-close the tab after the page is saved is a separate option; it is not required to save a page when closing a tab.
If you want screenshots rather than saved HTML pages
SingleFileZ’s setting saves a page; it is not a screenshot workflow. For a screenshot of a web page, ScreenshotNeo offers a one-request screenshot API and an MCP server for AI agents.
#1 Best Overall
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Best Value
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- Back up your content and memories on a storage solution that fits seamlessly into your mobile lifestyle.
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- From Sandisk, a brand professional photographers trust to take on assignments.
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- Capacity Display Variance: 500GB external ssd often appears as around 465GB on Windows. MacOS can show full 500 GB capacity. This is binary calculation difference and doesn’t affect SSD hard drive actual physical storage
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curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo can accept cookie and consent banners and remove known consent platforms, newsletter popups, and chat widgets before capture; those steps can be turned off. Bot checks, blank pages, timeouts, failed loads, and cache hits are not billed, and response headers report the page verdict and billing status. Its MCP server provides screenshot tools for AI agents. The free plan includes 1,000 shots per month with no card; paid plans start at $5 for 3,000 shots.
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Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problems
