Package: firefox Version: 93.0-1 Severity: normal Pages using widevine kept crashing for me … I was wondering for awhile there if this was because my Firefox profile had been through about five release versions of two Linux distributions. However it didn't work on a new profile, so we dug deeper on irc to figure out if there was another cause.
Ultimately, it appears upstream has a fix for exactly this problem, found at the end of their AppArmor profile: https://gitlab.com/apparmor/apparmor/-/blob/656f2103ed70387d2643ff83d510960dfd959e7f/profiles/apparmor/profiles/extras/usr.lib.firefox.firefox Specifically: # needed by widevine ptrace (trace) peer=@{profile_name}, @{HOME}/.mozilla/firefox/*/gmp-widevinecdm/*/lib*so m, The ability to ptrace itself, and the ability to mmap the libwidevine and other .so files associated with WideVine. This fixed a newly-created profile and my existing one. -- Package-specific info: -- Extensions information Name: Add-ons Search Detection Location: /home/tjcarter/.mozilla/firefox/dnec3otd.tjcarter/features/{69714ef9-0c55-485a-b36b-45cc72fdebfe}/addons-search-detect...@mozilla.com.xpi Status: enabled Name: Amazon.com Location: /usr/lib/firefox/browser/omni.ja Package: firefox Status: enabled Name: Bing Location: /usr/lib/firefox/browser/omni.ja Package: firefox Status: enabled Name: Bitwarden - Free Password Manager Location: ${PROFILE_EXTENSIONS}/{446900e4-71c2-419f-a6a7-df9c091e268b}.xpi Status: enabled Name: Buster: Captcha Solver for Humans Location: ${PROFILE_EXTENSIONS}/buster-capt...@jeelsboobz.id.xpi Status: enabled Name: ClearURLs Location: ${PROFILE_EXTENSIONS}/{74145f27-f039-47ce-a470-a662b129930a}.xpi Status: enabled Name: Dark theme Location: /usr/lib/firefox/browser/omni.ja Package: firefox Status: user-disabled Name: DoH Roll-Out Location: /usr/lib/firefox/browser/features/doh-roll...@mozilla.org.xpi Package: firefox Status: enabled Name: DownThemAll! Location: ${PROFILE_EXTENSIONS}/{DDC359D1-844A-42a7-9AA1-88A850A938A8}.xpi Status: enabled Name: DuckDuckGo Location: /usr/lib/firefox/browser/omni.ja Package: firefox Status: enabled Name: eBay Location: /usr/lib/firefox/browser/omni.ja Package: firefox Status: enabled Name: Firefox Alpenglow theme Location: /usr/lib/firefox/browser/omni.ja Package: firefox Status: user-disabled Name: Firefox Multi-Account Containers Location: ${PROFILE_EXTENSIONS}/@testpilot-containers.xpi Status: enabled Name: Firefox Screenshots Location: /usr/lib/firefox/browser/features/screensh...@mozilla.org.xpi Package: firefox Status: enabled Name: Form Autofill Location: /usr/lib/firefox/browser/features/formautof...@mozilla.org.xpi Package: firefox Status: enabled Name: Google Location: /usr/lib/firefox/browser/omni.ja Package: firefox Status: enabled Name: HTTPS Everywhere Location: ${PROFILE_EXTENSIONS}/https-everywh...@eff.org.xpi Status: enabled Name: Light theme Location: /usr/lib/firefox/browser/omni.ja Package: firefox Status: user-disabled Name: Neat URL Location: ${PROFILE_EXTENSIONS}/neat...@hugsmile.eu.xpi Status: enabled Name: Picture-In-Picture Location: /usr/lib/firefox/browser/features/pictureinpict...@mozilla.org.xpi Package: firefox Status: enabled Name: Prevent Duplicate Tabs Location: ${PROFILE_EXTENSIONS}/{e80594de-acca-4551-af7a-c9bd9d2f3388}.xpi Status: enabled Name: Privacy Possum Location: ${PROFILE_EXTENSIONS}/woop-noopscoopsn...@jetpack.xpi Status: enabled Name: Proxy Failover Location: /home/tjcarter/.mozilla/firefox/dnec3otd.tjcarter/features/{69714ef9-0c55-485a-b36b-45cc72fdebfe}/proxy-failo...@mozilla.com.xpi Status: enabled Name: Remove Redirect Location: ${PROFILE_EXTENSIONS}/removeredir...@hyperfekt.xpi Status: enabled Name: Removes Most AdBlocker Walls (DailyBeast etc) Location: ${PROFILE_EXTENSIONS}/{cc970d2f-047a-4367-8f94-239277ef52d6}.xpi Status: enabled Name: Reset Search Defaults Location: /home/tjcarter/.mozilla/firefox/dnec3otd.tjcarter/features/{69714ef9-0c55-485a-b36b-45cc72fdebfe}/reset-search-defau...@mozilla.com.xpi Status: enabled Name: Search by Image Location: ${PROFILE_EXTENSIONS}/{2e5ff8c8-32fe-46d0-9fc8-6b8986621f3c}.xpi Status: enabled Name: Stylus Location: ${PROFILE_EXTENSIONS}/{7a7a4a92-a2a0-41d1-9fd7-1e92480d612d}.xpi Status: enabled Name: System theme theme Location: /usr/lib/firefox/omni.ja Package: firefox Status: enabled Name: Tab Manager Plus for Firefox Location: ${PROFILE_EXTENSIONS}/{45f2dc53-96cd-4c41-91f6-f4a73a8fb2b0}.xpi Status: enabled Name: Temporary Containers Location: ${PROFILE_EXTENSIONS}/{c607c8df-14a7-4f28-894f-29e8722976af}.xpi Status: enabled Name: To Google Translate Location: ${PROFILE_EXTENSIONS}/jid1-93wyvpgvxzg...@jetpack.xpi Status: enabled Name: uBlock Origin Location: ${PROFILE_EXTENSIONS}/ublo...@raymondhill.net.xpi Status: enabled Name: Universal Bypass Location: ${PROFILE_EXTENSIONS}/{529b261b-df0b-4e3b-bf42-07b462da0ee8}.xpi Status: enabled Name: Video DownloadHelper Location: ${PROFILE_EXTENSIONS}/{b9db16a4-6edc-47ec-a1f4-b86292ed211d}.xpi Status: enabled Name: Web Compatibility Interventions Location: /usr/lib/firefox/browser/features/webcom...@mozilla.org.xpi Package: firefox Status: enabled Name: WebCompat Reporter Location: /usr/lib/firefox/browser/features/webcompat-repor...@mozilla.org.xpi Package: firefox Status: user-disabled Name: Wikipedia (en) Location: /usr/lib/firefox/browser/omni.ja Package: firefox Status: enabled -- Addons package information ii firefox 93.0-1 amd64 Mozilla Firefox web browser -- System Information: Debian Release: bookworm/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 5.14.0-3-amd64 (SMP w/16 CPU threads) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages firefox depends on: ii debianutils 5.5-1 ii fontconfig 2.13.1-4.2 ii libatk1.0-0 2.36.0-2 ii libc6 2.32-4 ii libcairo-gobject2 1.16.0-5 ii libcairo2 1.16.0-5 ii libdbus-1-3 1.12.20-2 ii libdbus-glib-1-2 0.112-2 ii libevent-2.1-7 2.1.12-stable-1 ii libffi8 3.4.2-3 ii libfontconfig1 2.13.1-4.2 ii libfreetype6 2.11.0+dfsg-1 ii libgcc-s1 11.2.0-10 ii libgdk-pixbuf-2.0-0 2.42.6+dfsg-2 ii libglib2.0-0 2.70.0-1+b1 ii libgtk-3-0 3.24.30-3 ii libnspr4 2:4.32-1 ii libnss3 2:3.70-1 ii libpango-1.0-0 1.48.10+ds1-1 ii libstdc++6 11.2.0-10 ii libvpx6 1.10.0-2 ii libx11-6 2:1.7.2-2+b1 ii libx11-xcb1 2:1.7.2-2+b1 ii libxcb-shm0 1.14-3 ii libxcb1 1.14-3 ii libxcomposite1 1:0.4.5-1 ii libxdamage1 1:1.1.5-2 ii libxext6 2:1.3.4-1 ii libxfixes3 1:5.0.3-2 ii libxrender1 1:0.9.10-1 ii procps 2:3.3.17-5 ii zlib1g 1:1.2.11.dfsg-2 Versions of packages firefox recommends: ii libavcodec-extra58 [libavcodec58] 7:4.4-6+b2 Versions of packages firefox suggests: ii fonts-lmodern 2.004.5-6.1 ii fonts-stix [otf-stix] 1.1.1-4.1 ii libcanberra0 0.30-8 ii libgssapi-krb5-2 1.18.3-7 ii pulseaudio 15.0+dfsg1-2 -- no debconf information