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If Firefox keeps crashing when you try to start it, and you can't install the latest update to fix it, a clean install will fix the problem.

{for not =fx32}{warning}This article applies only to [[Find what version of Firefox you are using | Firefox version]] 32 and 32.0.1.{/warning}{/for} An update was released to fix crash issues with [[Find what version of Firefox you are using | Firefox version]] 32 and 32.0.1, but if crashes are preventing you from starting Firefox, a clean install will fix the problem. Here's how to do it: {for win} #[[Uninstall Firefox from your computer]]. #Delete the Firefox installation folder (located in one of these folders by default): #*C:\Program Files\Mozilla Firefox #*C:\Program Files (x86)\Mozilla Firefox #[[Image:download firefox win 32x32|link=https://download.mozilla.org/?product=firefox-stub&os=win&lang=en-US]][https://download.mozilla.org/?product=firefox-stub&os=win&lang=en-US Download a fresh copy of Firefox]. <!--Replace the "lang=___" string with your locale--> #Double-click on the downloaded file and follow the prompts to continue the installation process. For more information on how to install Firefox, see [[How to download and install Firefox on Windows]] {/for} {for mac} #Delete Firefox from the ''Applications'' folder. #[[Image:mac download 32x32|link=http://www.mozilla.org/firefox/new/#download-fx]][http://www.mozilla.org/firefox/new/#download-fx Download a fresh copy of Firefox]. #Open the downloaded file and drag the Firefox icon to the ''Applications'' folder when prompted. {/for} {for linux} #Use your distributor's package management system to uninstall Firefox (please refer to their documentation). If that doesn't work, delete the Firefox folder from your ''Home'' folder. #Install Firefox through your package management system or follow these steps to manually install Firefox: #* [[Image:download linux 32x32|link=http://www.mozilla.org/firefox/new/#download-fx]][http://www.mozilla.org/firefox/new/#download-fx Download a fresh copy of Firefox]. #* Extract the file to your ''Home'' folder. {/for} {note}'''Will I lose my bookmarks, passwords and add-ons?''' A clean install will not delete your bookmarks, saved passwords, add-ons or other personal information. This information is stored separately in your [[Profiles - Where Firefox stores your bookmarks, passwords and other user data | profile]] folder.{/note}