This version was notable for balancing aggressive privacy protections with web compatibility:
: An intelligent tracker-blocking mechanism that prevents websites from breaking when "Strict" Enhanced Tracking Protection is enabled by providing "stand-in" scripts for blocked trackers.
Mozilla maintains an official archive of all past releases. To safely download version 87: Firefox 87.0, See All New Features, Updates and Fixes
: Removed less-used items from the Library menu (Synced tabs, Pocket list) and simplified the Help menu.
: Disabled the Backspace key as a navigation "Back" shortcut to prevent accidental data loss in forms. How to Download Firefox Version 87
: The "Highlight All" feature was updated to show marks on the scrollbar corresponding to the position of found matches.
Mozilla Firefox Version 87, released on , introduced significant privacy enhancements and user interface refinements. While newer versions are available, some users seek this specific release for compatibility with certain legacy web tools or developer environments. Key Features of Firefox 87
: To prevent accidental data leaks, Firefox 87 began trimming path and query string information from HTTP Referrer headers by default.