i had some problems with windows services and firewall and network. i installed the tool from tweaking.com( i don't know if it is legit or scam or virus or anything. would appreciate clarification.) after i repaired windows with it some of my apps including firefox did not start and were corrupted. after that i wanted to reinstall firefox and used the helper.exe from the uninstall folder in mozilla firefox folder in drive C. it restarted firefox and all my tabs were gone. i accessed the jason files (recovery,restore,...) and none of them had my tabs. i signed in to my account and all my history and bookmarks are still here but about 100 tabs were lost. i really need those tabs and i am in desperate need for help. thanks ( in no parts of system repair or other actions i have not created a back up and do not have that back up or system restore files)