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Custom CSS

Custom CSS

Overwrite or inject custom CSS into website.

Custom CSS is available to install from Firefox Browser Add-ons and for download from this page. It has 89 daily active users The latest version is 1.1, and it was published 8 months ago.

View source code
Total download count: 0 (Only count downloads from FirefoxStats)
Install Custom CSS from Firefox Browser Add-ons
All available versions

You can find the current and older versions of Custom CSS here. You can download the archived versions or inspect their source codes.

As a free user, you can access up to 5 versions. Subscribe to the paid version of FirefoxStats to access more available versions.

Version Download Size Download count Timestamp
1.1 Sign in to download 27.77K 0 2022-08-02
How to install Custom CSS from an XPI file
  1. Simply drag-and-drop the XPI into Firefox to install the add-on.
How to install Custom CSS from a ZIP file
  1. Download the Custom CSS ZIP file
  2. In Firefox browser, go to about:addons to open Add-ons Manager
  3. Click on , then select Install Add-on From File
  4. Select the Custom CSS ZIP file from step 1. Custom CSS is now installed on your browser.