

I looked through every subfolder and file in the that profile folder and didn't find any match to the three files named in the Senali's answer: the folder THe link is to a folder named fault. Where you sent me is where I first started (in the Library folder, Mozilla etc). I did not mean to choose this as a solution. Thanks for your response Senali and Wesley. LP users report the same problem on their site but it's clearly a Firefox 71 problem (LP works fine will all my other browsers). Even though LastPass is a "recommended" extension, when I try to re-install from Mozilla I get the message "an unexpected error occurred during installation" (see attached file). LastPass was installed and running until Firefox automatically upgraded to ver.

Then Set preference to false on about:config page by double clicking. Type "about:config" on address bar and enter. Under the Application Basics section next to Profile Directory, click on Open Directory. The Troubleshooting Information tab will open. To find the location of Profiles folder:-Ĭlick the menu button,click Help and select Troubleshooting Information.

(These files will be re-created automatically when you start Firefox next time and your problem will be fixed) So therefore delete following files from your Mozilla Firefox Profiles folder:
Re install lastpass update#
Most of the times, this problem occurs when you update the Firefox version installed in your system.
