55.0.3 cannot uninstall - how do I manually remove it?
Something seemed to go very wrong with the automatic update from 55.0.3 to 56.0. After the mozilla updater ran Firefox never opened and all my shortcuts to Firefox stopped working reporting the file they pointed to was gone. If I try to uninstall 55.0.3 from the control panel I get a UAC prompt and then nothing. There's no error message, nor is the entry for FF 55.0.3 removed.
I downloaded the 56.0 installer, re-ran it, and now have a working browser but I still have this dead "Mozilla Firefox 55.0.3" entry listed in Programs & Features. How do I manually get rid of it?
All Replies (2)
Hi, certain Firefox problems can be solved by performing a Clean reinstall. This means you remove your Firefox program files and then reinstall Firefox. This process does not remove your Firefox profile data (such as bookmarks and passwords), since that information is stored in a different location.
To do a clean reinstall of Firefox, please follow these steps: Note: You might want to print these steps or view them in another browser.
- Download the latest Desktop version of Firefox from mozilla.org (or choose the download for your operating system and language from this page) and save the setup file to your computer.
- After the download finishes, close all Firefox windows (or open the Firefox menu
and click the close button 
).
- Delete the Firefox installation folder, which is located in one of these locations, by default:
- Windows:
- C:\Program Files\Mozilla Firefox
- C:\Program Files (x86)\Mozilla Firefox
- Mac: Delete Firefox from the Applications folder.
- Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
- Windows:
- Now, go ahead and reinstall Firefox:
- Double-click the downloaded installation file and go through the steps of the installation wizard.
- Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
More information about reinstalling Firefox can be found here.
WARNING: Do not use a third party uninstaller as part of this process. Doing so could permanently delete your Firefox profile data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See Back up and restore information in Firefox profiles.
Please report back to say if this helped you!
Thank you.
Thanks, did that already, I still have two entries in Programs & Features for FF. One for 56.0 from the fresh install and a leftover one from 55.0.3 that fails to uninstall. How do I get rid of the entry for the latter?