firefox: allow RDD sandbox access to gpu drivers
Firefox uses a sandboxing model that only allows access to paths that were previously explicitly granted. We can only add granular permissions to a specific sandbox by patching, because setting LD_LIBRARY_PATH would affect all of them. To use hardware decoding via VA-API with Firefox 98.0.2 one needs to head to `about:config` and enable `media.ffmpeg.vaapi.enabled`. Closes: #157061
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@ -165,6 +165,14 @@ buildStdenv.mkDerivation ({
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inherit src unpackPhase meta;
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patches = [
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(fetchpatch {
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# RDD Sandbox paths for NixOS, remove with Firefox>=100
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# https://hg.mozilla.org/integration/autoland/rev/5ac6a69a01f47ca050d90704a9791b8224d30f14
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# https://bugzilla.mozilla.org/show_bug.cgi?id=1761692
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name = "mozbz-1761692-rdd-sandbox-paths.patch";
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url = "https://hg.mozilla.org/integration/autoland/raw-rev/5ac6a69a01f47ca050d90704a9791b8224d30f14";
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hash = "sha256-+NGRUxXA7HGvPaAwvDveqRsdXof5nBIc+l4hdf7cC/Y=";
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})
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]
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++ lib.optional (lib.versionAtLeast version "86") ./env_var_for_system_dir-ff86.patch
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++ lib.optional (lib.versionAtLeast version "90" && lib.versionOlder version "95") ./no-buildconfig-ffx90.patch
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