BlockUSM - Stop Doomscrolling by mohamed-lashuel
A free extension to block yourself from accessing websites, remove distracting elements from social media like feeds and shorts, and remove sites from search results.
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
BlockUSM is a comprehensive social media blocker - you can block websites entirely, block only certain features of a site, and remove websites from search results on search engines such as Google.
For example:
- Block a website such as TikTok entirely - trying to access it will take you to a page notifying you that the site is forbidden
- Remove distracting features such as YouTube recommended videos or Instagram reels. Options already exist for the popular social media sites, but you can configure the extension to remove any element from any website.
- Hide websites such as Reddit from search engine results. Searching for anything will no longer show results from Reddit.
Currently supported search engines are:
- Google
- DuckDuckGo
BlockUSM is completely free with no ads and always will be.
BlockUSM is designed to remove temptations and stop the habit of opening social media sites. If you are addicted to social media, consider reading my free guide QuitUSM to understand and overcome social media addiction.
Github: https://github.com/MohamedLashuel/BlockUSM
For example:
- Block a website such as TikTok entirely - trying to access it will take you to a page notifying you that the site is forbidden
- Remove distracting features such as YouTube recommended videos or Instagram reels. Options already exist for the popular social media sites, but you can configure the extension to remove any element from any website.
- Hide websites such as Reddit from search engine results. Searching for anything will no longer show results from Reddit.
Currently supported search engines are:
- DuckDuckGo
BlockUSM is completely free with no ads and always will be.
BlockUSM is designed to remove temptations and stop the habit of opening social media sites. If you are addicted to social media, consider reading my free guide QuitUSM to understand and overcome social media addiction.
Github: https://github.com/MohamedLashuel/BlockUSM
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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
- 1.0.1
- Size
- 1.59 MB
- Last updated
- 12 days ago (Nov 1, 2026)
- Related Categories
- License
- MIT License
- Version History
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