@christoph-thomas I did not propose to disable the apparmor profile. I just disabled it to demonstrate that the issue is fully related to the apparmor profile provided by ubuntu and not related to FF upstream.
Later on, I uploaded a patch which fixes the profile itself. With the patch applied to the profile while the profile is enabled, the whole issue is fixed whereas apparmor still can take care on security. That goes along with what @mailing-m1 already posted in comment 13. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1627239 Title: Web pages not rendering with e10s enabled and AppArmor profile in enforce mode Status in firefox package in Ubuntu: Confirmed Bug description: STR: 0. Enable enforce mode for the Firefox app-armor profile: sudo aa-enforce usr.bin.firefox 1. Open Firefox 49 with clean profile (or force-enable e10s as per https://wiki.mozilla.org/Electrolysis#Force_Enable and restart Firefox) 2. Go to any site What happens: The site loads but the content is rendered blank. The page is loaded properly since I can hover over (invisible) links and see the cursor change & the address to be shown in the bottom of the window. What should happen: The site is rendered properly. This is related to e10s and the default AppArmor profile shipped with firefox. See the attached screenshot for how the first-run page looks like with a clean profile, e10s and AppArmor enabled. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: firefox 49.0+build4-0ubuntu0.16.04.1 ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19 Uname: Linux 4.4.0-38-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 BuildID: 20160920074044 Channel: Unavailable CurrentDesktop: Unity Date: Sat Sep 24 07:38:09 2016 DefaultProfileExtensions: extensions.sqlite corrupt or missing DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) DefaultProfileLocales: extensions.sqlite corrupt or missing DefaultProfilePlugins: Shockwave Flash - /usr/lib/adobe-flashplugin/libflashplayer.so (adobe-flashplugin) DefaultProfilePrefSources: prefs.js DefaultProfileThemes: extensions.sqlite corrupt or missing ForcedLayersAccel: False RunningIncompatibleAddons: False SourcePackage: firefox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1627239/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
