Download mozilla old versions

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Mozilla Firefox Free. In product documentation we need to say that Our product is certified with version X of this browser. Major version change should imply major changes If you are producing software how do you detect the Firefox version and show whether or not it is compatible?

If you are, or your clients are in a corporate environment there is a possibility that Firefox ESR will be in use. My understanding is that ESR has been brought out primarily to deal with this sort of problem ensuring software may be certified in an enterprise, and does not change as often so it will remain as Firefox 10 with point releases for a while.

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.

In the General panel, go to the Firefox Updates section. Microsoft Edge. Google Chrome Opera. Release Notes Get the details on the latest Firefox updates. Facebook Container Help prevent Facebook from collecting your data outside their site. Pocket Save and discover the best stories from across the web. Mozilla VPN Get protection beyond your browser, on all your devices.

Product Promise Learn how each Firefox product protects and respects your data. Firefox Relay Sign up for new accounts without handing over your email address. 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.