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Fix videos on Firefox #32497

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Merged
dbkr merged 3 commits into from
Feb 13, 2026
+7 −0
Merged

Fix videos on Firefox #32497

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3a2c4e2
Fix videos on Firefox
p1gp1g Feb 13, 2026
fe3bce0
React needs camelCase attr names
dbkr Feb 13, 2026
b54738f
Merge branch 'develop' into fix-firefox-video
dbkr Feb 13, 2026
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4 changes: 4 additions & 0 deletions src/components/views/messages/MVideoBody.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -326,6 +326,10 @@ class MVideoBodyInner extends React.PureComponent<IProps, IState> {
// Disable downloading as it doesn't work with e2ee video,
// users should use the dedicated Download button in the Message Action Bar
controlsList="nodownload"
// The video uses a cross-origin request.
// Firefox explicitly bypasses services workers for crossorigin
// video elements without crossorigin attribute.
crossOrigin="anonymous"
preload={preload}
muted={autoplay}
autoPlay={autoplay}
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3 changes: 3 additions & 0 deletions test/unit-tests/components/views/messages/__snapshots__/MVideoBody-test.tsx.snap
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Expand Up @@ -13,6 +13,7 @@ exports[`MVideoBody does not crash when given portrait dimensions 1`] = `
class="mx_MVideoBody"
controls=""
controlslist="nodownload"
crossorigin="anonymous"
poster="data:image/png;base64,00"
preload="none"
/>
Expand All @@ -37,6 +38,7 @@ exports[`MVideoBody should show poster for encrypted media before downloading it
class="mx_MVideoBody"
controls=""
controlslist="nodownload"
crossorigin="anonymous"
poster="https://server/_matrix/media/v3/download/server/encrypted-poster"
preload="none"
title="alt for a test video"
Expand All @@ -62,6 +64,7 @@ exports[`MVideoBody with video previews/thumbnails disabled should download vide
class="mx_MVideoBody"
controls=""
controlslist="nodownload"
crossorigin="anonymous"
poster="https://server/_matrix/media/v3/download/server/encrypted-poster"
preload="none"
title="alt for a test video"
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