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. Careers Work for a mission-driven organization that makes people-first products. Mozilla Blog Learn about Mozilla and the issues that matter to us. Close Innovation menu Mozilla Hubs Gather in this interactive, online, multi-dimensional social space.
Firefox Developer Edition Get the Firefox browser built just for developers. Firefox Reality Explore the web with the Firefox browser for virtual reality. Common Voice Donate your voice so the future of the web can hear everyone. Firefox moves fast and treats your data with care - no ad tracking and no slowdown.
Choose what to share and when to share it. Easy migration of preferences and bookmarks when you download Firefox for Windows. User rating:. If you need help or have a question, contact us Would you like to update this product info? Is there any feedback you would like to provide? Click here. Popular Downloads Macromedia Flash 8 8. Cool Edit Pro 2. Acoustica MP3 Audio Mixer 2.
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