After I upgraded to Ubuntu 16.10 I am experiencing an immediate crash when trying to watch a video which uses the Widevine plugin.
I am using Firefox 49
Widevine works fine in Chrome
I logged into guest mode and tried it there, but same problem occurs
One of some crash reports I sent with Firefox: https://crash-stats.mozilla.com/report/index/088a0c5c-5509-423b-8347-6ed842161022#tab-details
On a second PC with Firefox 49.0.2 and Ubuntu 16.04 everything worked fine, after upgrading to 16.10 I experience the same error
Hope someone can help