From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jakub =?UTF-8?Q?K=C4=85dzio=C5=82ka?= Subject: bug#38831: IceCat: some codecs don't work without workaround Date: Tue, 31 Dec 2019 15:24:01 +0100 Message-ID: <20191231142401.qt2oxe6jkefsxxnd@zdrowyportier.kadziolka.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Received: from eggs.gnu.org ([2001:470:142:3::10]:37368) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1imISF-0002kd-Qj for bug-guix@gnu.org; Tue, 31 Dec 2019 09:25:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1imISE-0008Cg-Kp for bug-guix@gnu.org; Tue, 31 Dec 2019 09:25:03 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:56161) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1imISE-0008BS-E9 for bug-guix@gnu.org; Tue, 31 Dec 2019 09:25:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1imISE-0006i5-A2 for bug-guix@gnu.org; Tue, 31 Dec 2019 09:25:02 -0500 Sender: "Debbugs-submit" Resent-Message-ID: Received: from eggs.gnu.org ([2001:470:142:3::10]:35474) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1imIRR-0002hB-23 for bug-guix@gnu.org; Tue, 31 Dec 2019 09:24:14 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1imIRP-0004wG-NZ for bug-guix@gnu.org; Tue, 31 Dec 2019 09:24:12 -0500 Received: from pat.zlotemysli.pl ([37.59.186.212]:60988) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1imIRP-0004JW-BM for bug-guix@gnu.org; Tue, 31 Dec 2019 09:24:11 -0500 Content-Disposition: inline List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org Sender: "bug-Guix" To: 38831@debbugs.gnu.org Hello, I had some problems with video codecs in IceCat 68.3.0-guix0-preview1. For example, consider this page: http://demo.nimius.net/video_test/. By default, the videos under the headings H.264 / AAC and MPEG4 don't work ("No video with supported format and MIME type found."). The following steps make the first of these videos work: 1. Open about:config 2. Click "I accept the risk!" 3. Set security.sandbox.content.read_path_whitelist to /gnu/store/ (the trailing / is important). The instructions were originally sketched out in this help-guix message: https://lists.gnu.org/archive/html/help-guix/2019-12/msg00150.html I believe it would be beneficial to make this a default. On IRC, bandali suggested that it would be better to only whitelist the necessary store subdirectories. I don't know how to gather such a list, but it it seems like a good idea. I don't know how about:config entries modified by the user behave when IceCat is updated, but in some of the behaviors I can imagine, the config entry stops updating, in which case it would be better to add the paths to some internal whitelist (I reckon such a whitelist already exists and contains something like /usr/lib). Regards, Jakub Kądziołka CC: mhw as suggested by nckx