Free Firefox legacy extensions

FireFTP is a discontinued free, open-source, cross-platform FTP client for Mozilla Firefox in the form of an add-on. It supports FTP, FTPS, and SFTP. FireFTP was developed by Mime Čuvalo, a Croatian web developer who released it as charityware. It runs on any of the platforms that Firefox supports. FireFTP's layout is similar to that of WS FTP. It is no longer compatible with Firefox 57 (Quantum) and later, and the authors recommend using Waterfox instead of Firefox.

Mozilla Firefox free extension released by Google

Software module for Mozilla Firefox

Vimperator is a discontinued Firefox extension forked from the original Firefox extension version of Conkeror and designed to provide a more efficient user interface for keyboard-fluent users. The design is heavily inspired by the Vim text editor, and the authors try to maintain consistency with it wherever possible.

FlashGot was an add-on for Firefox that allowed interoperability between the Firefox browser and external download managers. It is no longer compatible with later versions of Firefox. It is not itself a download manager but is designed to allow the Firefox interface to be extended to connect to the selected external download manager. This avoided launching the download manager as an independent application and cutting and pasting the across the links of the files that need to be downloaded. Forked browsers like Pale Moon and Waterfox are also supported.

Firesheep was an extension for the Firefox web browser to hijack sessions. It used a packet sniffer to intercept unencrypted session cookies from websites such as Facebook and Twitter. The plugin eavesdropped on Wi-Fi communications, listening for session cookies. When it detected a session cookie, the tool used this cookie to obtain the identity belonging to that session. The collected identities (victims) are displayed in a side bar in Firefox. By clicking on a victim's name, the victim's session is taken over by the attacker.

mobile web browser

Mozilla Firefox browser add-on

uProxy was an extension for Chrome and Firefox, which allowed users to access the Internet via a web proxy. This project has been superseded by Snowflake (software). The extension works by enabling a user to share their Internet connection with someone else. Google Ideas provided funding for the development which was carried out by the University of Washington and Brave New Software — the same organization behind the anti-censorship tool Lantern. The extension is intended to allow users to get more secure access to the Internet without being monitored. It is free/libre software under Apache li