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Free download mozilla firefox for windows 7 old version

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  • Install an older version of firefox | firefox help

    Downgrading to an older version can cause loss of Firefox user data, as well as performance and security issues. We advise against downgrading so please do so at your own risk.

    Downgrading is for advanced users only: If you must use an older version of Firefox, please create a separate Firefox profile for the older version, to minimize data loss.

    Often when there is a problem with a Firefox update, people look for a way to go back to the previous version. That usually doesn't solve the problem and will make your computer and information vulnerable to attack. This article gives you some alternatives to downgrading and links to old versions of Firefox if you do choose to downgrade.

    Problems with an update are generally not caused by the new version of Firefox, but rather the update process. Installing a previous version will not help in most cases. Instead, see:

    Note: Other problems can be solved with the Refresh Firefox feature. It restores Firefox to its default state while saving your essential information.

    Ensure all security and security related software is fully updated. Some security software will need to be upgraded to a new version for each Firefox version update.

    Optional software bundled with security software may also need updating. Such software may not be essential for your security, but if outdated, it may interfere with the use of Firefox, or cause Firefox to crash.

    Although Mozilla has a website with old versions of Firefox for testing purposes, it is not recommended that you use anything but the latest version.

    Warning: Using old versions of Firefox poses a significant security risk.

    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: Click the menu button New Fx Menu Fx57Menu and choose Options.Preferences. In the panel, go to the Firefox Updates section. (In Firefox version 55 and below, you would go to the panel and choose the tab.)Go to the panel and choose the tab (see this article for details).

    Instead of downgrading to an older, insecure version of Firefox and changing your update settings, you should consider these alternatives:

    Install Firefox Extended Support Release. Firefox Extended Support Release (ESR) is an official version of Firefox developed for large organizations like universities and businesses. Firefox ESR does not come with the latest features but it has the latest security and stability fixes. For more information, see the article Switch to Firefox Extended Support Release (ESR) for personal use.

    Use the latest version of another browser:

    If the latest version of Firefox is causing problems for you or you just don't like something about it, please give us feedback about it here:


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    These fine people helped write this article: AliceWyman, Chris Ilias, philipp, jscher2000, Underpass, Thomas, Tonnes, Michele Rodaro, David (satdav), Roland Tanglao, Michael Verdi, scoobidiver, John99, hobophobe, Swarnava Sengupta, minozake, LouCypher, ideato, Michal Stanke, user669794, Lan, Imen, Joni, Artist, Zppix. You can help too - find out how.


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