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Restore session after FF crash has no windows/tabs

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Firefox 48.0.1 crashed a while ago. I quit the application from the crash notification window & restarted my iMac. When I restarted Firefox, the session restore page appeared indicating that I should examine my windows & tabs, but that page contained no windows/tabs. I have no idea how to get back the tabs I had before the crash. The same thing happened recently, but I honestly don't remember whether it was the last time FF crashed, since it crashes not infrequently for no apparent reason.

Firefox 48.0.1 crashed a while ago. I quit the application from the crash notification window & restarted my iMac. When I restarted Firefox, the session restore page appeared indicating that I should examine my windows & tabs, but that page contained no windows/tabs. I have no idea how to get back the tabs I had before the crash. The same thing happened recently, but I honestly don't remember whether it was the last time FF crashed, since it crashes not infrequently for no apparent reason.

Alla svar (4)

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In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most resent 7 - 10 crash reports, and copy them. Now go to the reply box below and paste them in.

(Please don't take a screenshot of your crashes, just copy and paste the IDs. The below image is just an example of what your Firefox screen should look like.)

aboutcrashesFx29
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I did what you asked and got the correct title & columns, but no report list.

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It just happened again. This time I had the spinning beach ball for hours & then I force quit the application. I have my history but the restore windows & tabs is empty. At this point, I'm going to stop using Firefox except for specific situations in which Safari doesn't do what I want.

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If you were not in incognito mode before facing the crash issue, you could press the Settings button and click on the History button. There, you could find those closed tabs during the crash.