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Firefox still doesn't restore session after hard crash

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Sometimes when power to my machine is cut Firefox does not restore the previous session. Missed to check the restore file on the primary profile, it was still there on the secondary so I just restored it there. Last time this problem came up (29, Australis Update) it was independent of profile but occurred randomly on either of them. From what I remember on any other crash (freeze, kill task) restore works fine, it's just on hard crash that it doesn't.

Sometimes when power to my machine is cut Firefox does not restore the previous session. Missed to check the restore file on the primary profile, it was still there on the secondary so I just restored it there. Last time this problem came up (29, Australis Update) it was independent of profile but occurred randomly on either of them. From what I remember on any other crash (freeze, kill task) restore works fine, it's just on hard crash that it doesn't.

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We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash.

  1. Enter about:crashes in the Firefox address bar and press Enter. A Submitted Crash Reports list will appear, similar to the one shown below.
  2. Copy the 5 most recent Report IDs that start with bp- and then go back to your forum question and paste that into the "Post a Reply" box. (Please don't take a screenshot of your crashes, just copy and paste the ID's. The below image is just an example of what your Firefox screen should look like)

aboutcrashesFx29

Thank you for your help!

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.