Open Source Windows Browser Extensions and Plugins

Browse free open source Browser Extensions and Plugins and projects for Windows below. Use the toggles on the left to filter open source Browser Extensions and Plugins by OS, license, language, programming language, and project status.

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  • 1
    This Firefox extension allows you to undo closed tabs via a toolbar and/or tab bar button, the right-click context menu or an easier to reach and type keyboard shortcut (CTRL+SHIFT+Z). Works with Firefox 3.5 - 3.7a6pre
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    custombuttons
    Custom Buttons is a Mozilla Firefox extension, that allows you to add custom toolbar buttons.
    Downloads: 0 This Week
    Last Update:
    See Project
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