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Preview of Web Defuser

Web Defuser by Gear

Userscripts/styles on steroids. Keep YouTube or Instagram playing in the background, remove annoying nagging popups, add dark mode to websites, increase video volume past 100% and more!

You'll need Firefox to use this extension
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Options UI with defined rules
About this extension
This extension's goal is to put control over web experience back into the hands of the user above all else. If you've ever been frustrated by some annoying website behavior or missing functionality, this extension will empower you to overcome that.

To achieve that, you can define rules to process any HTTP request as you see fit, including modifying headers, body and more.

Please check out the source code repository (with snippets section containing some example useful rules) and interactive documentation on rules.
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This add-on needs to:

  • Access browser tabs
  • Access your data for all websites
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Version
1.0.0
Size
83.03 KB
Last updated
23 days ago (Mar 11, 2025)
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License
MIT License
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Release notes for 1.0.0
This is the first stable version. Although it lacks a complete UI, all rules are functional.

Check out interactive documentation to learn how to use the extension.
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