"The update could not be installed. Please make sure there are no other copies of Firefox running on your computer, and then restart Firefox to try again."
When the updater tries to install an update I get the message in the question box. How can I get it installed?
When the updater tries to install an update I get the message in the question box. How can I get it installed?
Alla svar (1)
You can try one of the following steps- 1. Close the firefox and all its instances. Restart firefox and update. 2. Or check for process related to firefox in task-manager and forefully close them all them restart brower and try updating. 3. Or try restarting computer them performing above steps. 4. Or you can unistall firefox and download the latest version and then install it. But don't forget to sync you firefox account to restore bookmarks, themes and extensions on next install.