I am using Linux Mint Rosa 17.3, Firefox was recently updated from 48.0.2 to 49.0. Since the update Firefox has been randomly crashing & showing a crash report has been sent.
There is no particular type of site this is happening on & is completely random. After searching for advice on line I have disabled hardware acceleration & set javascript.option.baselinejit to false, neither of these things have helped.
Firefox can run normally for up to half an hour or so before a crash. Could it be the old Firefox problem of consuming too much memory ?

Please try this:

a) run firefox from the terminal
b) disable addons (temporarily)
b) start with clean firefox profile

Hi & thanks for reply. I have done that & Firefox started up quicker than ever before & it seems more responsive, will it crash though, well time will tell as it has been known to run for some time time before crashing, so I'm using it as normal right now & I'll see what happens & report back. This is making me wonder if it's a corrupt addon causing the problem, maybe I will need to re-enable them one by one.

No worries, glad to help.

Still having problems but in the meantime Iv'e found the Palemoon browser which feels like Firefox on steroids, it's almost identical to Firefox except it's faster & so far doesn't crash so for now at least I'm sticking with it so I will mark this thread as solved

I just had firefox crash 3 times in 2 minutes and it was running from the terminal each time. Where can I get a browser that works?