When i open a new tab i get a tab with 2 blue bars, instead of one - the one on top of the site - and a little firefox dropdown - and when i start the next session firefox crashes???
When clicking a link - a new tab opens. But the new tab which opens looks wired: There are 2 blue bars - the one you get on each session(where the red x is which closes everything) - I don`t know how you call this. This 2nd blue bar is located directly under the "normal" one and has got - on the left hand side- a firefox dropdown menue(when you click it you get: New Tab, Start private browsing, edit, save page as and so on. I can close the session as always but when i start the next session a view hours or a day later then firefox opens all the tabs from the session before as individual windows - and then it crashes. This happens 2 or 3 times - then i see a window where i am asked to either restore the old session(which doesn`t work - it always crashes again) or start a new session - which works.
This is very annoying. Please tell me what to do.
Thank you richard
Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
- Don't make any changes on the Safe mode start window.
Thanks for your reply - but that doesn`t work either. I started in safe mode but have got the same problem!
It is possible that there is a problem with the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.
Delete the files sessionstore.js  and sessionstore.bak in the Firefox Profile Folder.
- Help > Troubleshooting Information > Profile Directory: Open Containing Folder
If you see files sessionstore-##.js with a number in the left part of the name like sessionstore-1.js then delete those as well.
Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost, so you will have to create them again (make a note or bookmark them).
Ok, now i have deleted those files - but the problem stays the same!
What else can i do? --- I really love working with firefox and i don`t want to change my browser - I hope there is a solution for my problem!