How to uninstall nightly 64 when vista uninstall does not work?

Question

When I go to launch nightly 64 it says "couldn't load XPCOM" when. I then tried uninstalling just nightly and simply put nothing happens. I do have the generic Mozilla Firefox and in the uninstall it also shows "Mozilla maintenance services" and I recently prob a couple of months ago installed thunderbird for the first time ever though I doubt this has anything to do with any of these issues because if I recall correctly I've had this happened to me once before. One other thing i can add is i have vista ultimate with 12 gigs of memory.

Answer 1

Hello sebastian869, try a clean re-install and check if the "couldn't load XPCOM" issue does not exist anymore.This means you remove Firefox program files and then reinstall 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 http://www.mozilla.org and save the setup file to your computer.
#After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
#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 [[Installing Firefox on Linux]]. If you downloaded and installed the binary package from the [http://www.mozilla.org/firefox#desktop Firefox download page], simply remove the folder ''firefox'' in your home directory.
#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.
for nightly : http://nightly.mozilla.org/
Please report back to see if this helped you!
Thank you.
<!-- VERY important to include-->
<b>WARNING:</b> Do not run Firefox's uninstaller or use a third party remover as part of this process, because that could permanently delete your Firefox data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. <u>These cannot be recovered unless they have been backed up to an external device!</u>