Firefox profile causes widevine DRM to crash

Bug #1859361 reported by Zero on 2020-01-12
This bug affects 1 person
Affects Status Importance Assigned to Milestone

Bug Description

Steps to reproduce the issue:
1) Enable digital rights management support in FireFox (Preferences -> General)
2) sudo aa-enforce /etc/apparmor.d/usr.bin.firefox
3) Navigate to a site which has protected content (I tested this using

FireFox should display a yellow bar at the top letting you know Widevine has crashed.

I corrected this problem by adding the following line to usr.bin.firefox:

owner /home/*/.mozilla/firefox/rutsti3o.default-release/gmp-widevinecdm/4.10.1440.19/ m,

Maybe the default FireFox profile can be updated in a way that allows it to play nice with Widevine in the future.

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