Click the menu button and select Settings. 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. Important: By default, Firefox is set for automatic updates. Fix problems connecting to websites after updating Firefox.How to fix the Update Failed error message when updating Firefox.In most cases, installing a previous version will not help. Problems with an update are usually not caused by the new version of Firefox, but rather the update process. Installing a previous version doesn't fix most problems Rather than downgrading, try getting used to the new features or ask a question on the support forum, to see if there is a workaround or a way to restore the old behavior without downgrading Firefox. If you dislike new features in the latest version of Firefox, your first reaction might be to go back to the previous version. Unwanted features in the new Firefox version 3 I still want to downgrade - where can I get the previous version?.2 Installing a previous version doesn't fix most problems.1 Unwanted features in the new Firefox version.

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