Add-on is the Mozilla term for software modules that can be added to the Firefox web browser and related applications. Mozilla hosts them on its official...

of web browsers Add-on (Mozilla), a piece of software that enhances and customizes Mozilla-based applications Expansion pack, an add-on for a video game...

Mozilla (stylized as moz://a) is a free software community founded in 1998 by members of Netscape. The Mozilla community uses, develops, publishes and...

The Mozilla Corporation (stylized as moz://a) is a wholly owned subsidiary of the Mozilla Foundation that coordinates and integrates the development of...

Mozilla Firefox, or simply Firefox, is a free and open source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation...

like Python or Lua. In Mozilla Foundation definitions, the words "add-on", "extension" and "plug-in" are not synonyms. "Add-on" can refer to anything...

These packages of CSS and image files can be downloaded via the add-ons website at Mozilla Add-ons. With contributors all over the world, Thunderbird has been...

recommended by Mozilla. WebExtensions are designed for web browsers based on Mozilla Firefox 57 or later. Legacy add-ons are not listed on addon.mozilla.org. Many...

Netscape and the Mozilla Application Suite, most notably the XUL architecture. This allows the user to extend SeaMonkey by modifying add-ons for Thunderbird...

"significant technical and operational challenges" for Mozilla (notably preserving third-party add-on compatibility), but that it would help accelerate Firefox's...