Firefox current version 63 download

Grow and share your expertise with others. Answer questions and improve our knowledge base. Search Support Search. Home Firefox Download, install and migration Install an older version of Firefox. Warning: Firefox now includes downgrade protection to prevent corruption of user profile data. If you install an older version, you'll be prompted to create a new Firefox profile. Table of Contents 1 Installing a previous version doesn't fix most problems 2 I still want to downgrade — where can I get the previous version?

Note: Other problems can be solved with the Refresh Firefox feature. It restores Firefox to its default state while saving your essential information. Warning: Older Firefox versions pose a significant security risk. Firefox Important : By default, Firefox is set for automatic updates.

Windows Windows Leaked Snapdragon 8cx Gen 3 fails to beat Apple…. Microsoft rushes out fix for Windows 11 bug crashing random apps. Microsoft is accelerating Windows 11 rollout due to positive feedback. Once-popular Windows media player Winamp is probably coming back. Windows 10 KB 21H2, 21H1 released with these fixes. Windows 10 will receive major feature updates once a year.

Home Windows 10 PC. View all Products. Work for a mission-driven organization that makes people-first products. More About Mozilla. More Mozilla Innovation. Added content blocking, a collection of Firefox settings that offer users greater control over technology that can track them around the web.

Firefox now warns about having multiple windows and tabs open when quitting from the main menu. The Save and Quit feature has been removed. When selected these tiles will change focus to the address bar to initiate a search. Currently in US only. Resolved an issue that prevented the address bar from autofilling bookmarked URLs in certain cases.

The option to Never check for updates was removed from about:preferences. You can use the DisableAppUpdate enterprise policy as a substitute. This new default behavior is activated only in new profiles and can be changed in preferences. The Dev Tools accessibility inspector is now enabled by default. The inspector now ships with a Font Editor that allows you to control non-variable as well as variable fonts.