User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:36.0) Gecko/20100101 Firefox/36.0 Build ID: 20150306140302 Steps to reproduce: 1. Open any site (for example this bug report). 2. Cause Firefox to crash and start it again until it asks to restore the session. 3. Click on "Close". 4. Go a page back. 5. Close the tab. 6. Go to the menu bar -> History -> "Recently Closed Tabs" and choose the "Restore Session" tab. Actual results: There is no session anymore that can be restored. Expected results: Since skipping step 3 and 4 causes the previous session not to be lost I think clicking on "Close" should act if the tab gets closed.
sworddragon, Does this still reproduce for you? If so, can you clarify the steps? It seems to me there is something missing. (Or I am just misunderstanding)
I'm still able to reproduce this issue with Firefox 49. The only point that could be missing is to enable the menu bar for step 6 in case it is disabled but otherwise I do see nothing incomplete. Which step is making troubles for you?