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Mozilla doesn't save settings of CONTINUE WHERE I LEFT OFF and now it crashed like all the TABS are blank while I was still working on something, FIX IT!

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Tried your troubleshooting like refreshing or deleting some prefs or something, but it still just wont save, and another thing just happened, it crashed in a way that everything was just blank and I do mean everything.

Tried your troubleshooting like refreshing or deleting some prefs or something, but it still just wont save, and another thing just happened, it crashed in a way that everything was just blank and I do mean everything.

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Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

While still in Safe Mode,

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 recent 7 - 10 crash reports, and copy them. Now go to the reply box and paste them in.

aboutcrashesFx29

For more help on crash reports, see; https://support.mozilla.org/en-US/kb/firefox-crashes-asking-support

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My experiences with sessionstore after a crash is very good. Things have gotten a lot better in the last couple of years.

I agree with FredMcD, let's try to figure out what's happening to cause those crashes.