User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-US; rv:1.9b5) Gecko/2008032619 Firefox/3.0b5 Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-US; rv:1.9b5) Gecko/2008032619 Firefox/3.0b5 I had installed firefox 2 and the command+shif+t to open the last recently closed tab work just fine, but if I install firefox 3 b5 does not work, neather the submenu "open recently tabs" in the history menu. Reproducible: Always Steps to Reproduce: 1.uninstall firefox 2,0,0,13 2.install firefox 3 b5 3.open multiple tabs, close some 4.Try to use the command+shif+t shotcut Actual Results: the shortcut does not work Expected Results: the shortcut should open the las recently closed tab

Sounds like another problem that might be fixed by bug 359638. What keyboard layout are you using?

qwerty , the keyboard is an Apple keybord aluminium

Benjamin, what about cmd+t and cmd+w?

the patch of bug 359638 was landed. please check whether this also fixed. but I'm not sure that fixes this. Because Qwerty keyboard layout should not have this bug before the landing...

I create a new profile and the shortcut is working, but I didnt had time for testing which file is the problem in the other profile

hm... ok, this should not be related to bug 359638. I recommend that this is marked to WFM. The key handling should not be changed the behavior by profile. But if some extensions override the accel keys, this bug can be happened.

This sounds like a symptom of the pref browser.sessionstore.enabled becoming false somehow. The effect of that on the ability to restore closed tabs is a little counter-intuitive.

I had a similar issue (on Linux), but I can't remember where/how I set browser.sessionstore.enabled to false.

Please reopen should this not have been due to browser.sessionstore.enabled being set to false (which might happen when disabling Tab Mix Plus without re-enabling Firefox' own Session Restore functionality first).