Tab Groups are superb new feature in Firefox 4 to group our tabs. But after restarting Firefox, I found my tab groups missing. Boom..
Every time, I had to create my tab groups again and again.
Then I found a fix for it. Create your tab groups and then select the below option.
- Go to Firefox –> Options (Or Tools –> Options)
- In General tab, select ‘Show my windows and tabs from last time’ in ‘When Firefox Starts’ option.
- Press ‘OK’.
Now Close your Firefox without closing any tab and restart Firefox.
Your tab groups will be restored.
Hope this Helps.