Discover Firefox Extensions to Open Source.
Distributed under the LGPL license, allowing for free use, modification, and distribution.
Gnash is a free and open-source software player for SWF files, a format primarily used for Adobe Flash media. Developed as part of the GNU Project, it aimed to provide an independent and secure alternative to Adobe Flash Player, supporting various Flash functionalities for animation, video, and interactive web content, particularly during the widespread use of Flash on the internet.
Apertium is a free, open-source machine translation platform utilizing rule-based methods. It provides versatile translation capabilities, including online translation, browser integration, and potential for localized content.
Pencil Project is a free and open-source GUI prototyping tool that helps designers and developers create wireframes and mockups easily. Available as a standalone application and a Firefox extension, it offers a wide range of built-in shapes and templates for various platforms.
RequestPolicy is a powerful, open-source browser extension for Firefox that provides granular control over cross-site requests. It helps protect users from various web vulnerabilities like Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), and Clickjacking by allowing you to explicitly approve or deny requests to external domains.