Download Retainer

Download Retainer (current and past versions) for Firefox
Retainer is available to install from Firefox Browser Add-ons and for download from this page. It has 38 daily users. The latest version is 0.2.1, and it was last updated 3 years ago.
View source code
Total download count: 0 (Only count downloads from Chrome-Stats)

Available versions

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

As a free user, you can only download the latest version.

Upgrade to download older versions
Version Download Size Download count Timestamp
0.2.1 XPI · ZIP · Source code 17.53K 0 2025-01-24

Install XPI file

An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.

  1. Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

  1. Download and unpack the Retainer ZIP file to a directory of your choice.
  2. In Chrome browser, go to chrome://extensions
  3. Enable Developer mode.
  4. Click on the Load Unpacked button.
  5. Select the directory of with the unpacked Retainer ZIP file from step 1. Retainer is now installed on your browser.

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