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.
To prevent Firefox from automatically updating itself after you install an older version, you'll need to change your Firefox update settings: In the Menu bar at the top of the screen, click Firefox and select Preferences.
Get involved Join the fight for a healthy internet. 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. How can I download version Because I'm testing a bug which a client of our internet banking system reported using version You can find all locales of the current Firefox version on the Firefox download page. Downloads marked as just Windows are the bit versions, while the ones marked as Windows bit are the bit versions of Firefox.
To download more than one version or locale of Firefox on the same system, simply install each version in a different directory. Mozilla Foundation Meet the not-for-profit behind Firefox that stands for a better web. Get involved Join the fight for a healthy internet. 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.
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