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Fix Oblivion scrollbars in Firefox 153 - #3153

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xirvik merged 1 commit into
Novik:masterfrom
chiphead2332:fix/firefox-webkit-scrollbar
Aug 10, 2026
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Fix Oblivion scrollbars in Firefox 153#3153
xirvik merged 1 commit into
Novik:masterfrom
chiphead2332:fix/firefox-webkit-scrollbar

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Fixes #3152

Firefox 153 recognizes ::-webkit-scrollbar while reporting no support for ::-webkit-scrollbar-thumb. This can apply the custom scrollbar dimensions without the corresponding thumb styling, causing the scrollbar thumb to disappear.

This patch guards only the scrollbar geometry rule with @supports selector(::-webkit-scrollbar-thumb). The existing thumb, button, track-piece, and corner rules are unchanged.

Validated with Firefox 153 on Windows 10 against three ruTorrent instances using Oblivion, and with OblivionBlue on one instance. Chrome 151.0.7922.76 on Windows 10 was used as a regression check.

@xirvik
xirvik merged commit 4fdca3e into Novik:master Aug 10, 2026
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Firefox 153: Oblivion themes lose scrollbar thumb (partial WebKit scrollbar support bug)

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