Focus Hours – Website Blocker by vinaymahamuni
Blocks the websites you choose, but only during your working hours.
Available on Firefox for Android™Available on Firefox for Android™
Scan the QR code to open this extension in Firefox for Android
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About this extension
- Block any number of websites. Subdomains are included, so
youtube.comalso blocksm.youtube.com. - Set working-time windows (for example 10:00–13:00 and 14:00–18:00) and pick which days they apply to (Mon–Fri by default). A window like 22:00–02:00 runs past midnight.
- Blocked sites show a full-page screen with the current time, when the site will be available again, and a focus quote.
- Remove a site from the list at any time. If you remove one during working hours, you're asked to confirm first.
- Already-open tabs get blocked when a work window starts. The blocked page goes back to the site on its own once the window ends or you remove the site.
- The toolbar popup shows a status badge, a "Block this site" button, and quick add/remove.
- A main switch pauses all blocking without losing your settings.
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Permissions and data
Required permissions:
- Access browser tabs
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.0
- Size
- 26.7 KB
- Last updated
- 24 days ago (Sep 29, 2026)
- Related Categories
- License
- MIT License
- Version History
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