I have two local html files that were opened together in separate tabs several days ago, which are now being restored with every launching of Firefox. Firefox is launched with three tabs: (1) homepage; (2) a local html file and (3) the source code of the file. I had opened the local html file and then opened view the source code. These are the two files that are opened on launch, along with the homepage. I followed a forum answer of a similar sounding issue which detailed the possible corruption of sessionstore file(s). A resolution based on deleting of all sessionstore* files and the sessionstore-backups folder. Though this proposed solution did not resolve my issue. btw: prior to seeing the issue, I experienced a crash and was reminded of making the changes to browser.sessionstore.restore_on_demand and browser.sessionstore.restore_from_crash to prevent post-crash restores. The values were changed to False and then back to True, with the two tabs still being opened when Firefox is launched. Also, I have tried changing the preferences around remembering and clearing history with no luck. I've even tried uninstalling and reinstalling Firefox with no luck. Though maybe this should be tried in a way that I'm not automatically signed on with my gmail account. I want to use Firefox primarily for the developer tools, but this issue must be resolved for me to continue to use the product. OS-Windows 8.1