This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

My installed programs list shows two versions of Firefox, 38 and 47; is it safe to remove Ver 38?

  • 3 biyano
  • 1 eza na nkokoso oyo
  • 1 view
  • Eyano yasuka ya FredMcD

more options

My Windows 10 list of installed programs shows two versions of Firefox, ver 38.0.5 and 47.0 (the one I use). Is it safe to just uninstall ver 38.0.5 or will doing that damage ver 47?

My Windows 10 list of installed programs shows two versions of Firefox, ver 38.0.5 and 47.0 (the one I use). Is it safe to just uninstall ver 38.0.5 or will doing that damage ver 47?

All Replies (3)

more options

Let’s do a full clean re-install; Download Firefox For All languages And Systems {web link} Save the file. Then Close Firefox.

Using your file browser, open the Programs Folder on your computer.

Windows: C:\Program Files C:\Program Files (x86) Mac: Open the "Applications" folder.
https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac Linux: Check your user manual.

Do Not remove the profiles folder.

Look for, and rename any Mozilla or Firefox program folders by adding .old to them. Do not rename the Mozilla Thunderbird folder.

After rebooting the computer, run a registry scanner. Then run the installer. If all goes well, remove the OLD folders when you are done.


If there is a problem, start your Computer in safe mode and try again.

Starting The Computer In Safe Mode;
Free Online Encyclopedia

more options

Thanks for the reply. It is clear to me that I can remove all of Firefox and start all over. My question was whether I could just remove ver 38 with the Windows uninstaller, leaving ver 47 intact. Renaming and removing a bunch of folders and running a registry scan -- whatever that is -- sounds like a lot of work.

more options

If you use the uninstaller, there is a chance it could remove both programs. By doing the above, you would clean out and install the current.

A registry cleaner removes bad entries from the registry.