Why does uninstalling and reinstalling FF delete my tabs in Opera>
I regularly use FF and often use Opera. I had to uninstall FF and reinstall FF 51. Somehoe, that caused Opera to lose its tabs. These shouldn't have anything to do with each other, should they?
Additional System Details
- Adobe PDF Plug-In For Firefox and Netscape 18.11.20036
- VLC media player Web Plugin
- User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0
Firefox's own uninstaller shouldn't touch any other browser's program or data folders. It also doesn't remove Firefox's data folders. However, after a rollback, when the older version of Firefox encounters your existing profile, data may be changed/deleted because newer file formats may be invalid and unusable in older versions.