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Sounds like you were just updated from Firefox ESR 102 to 115. However, Firefox’s default theme hasn’t changed. It should still be “System theme - auto”, which
by cpeterso 3y ago
Sounds like you were just updated from Firefox ESR 102 to 115. However, Firefox’s default theme hasn’t changed. It should still be “System theme - auto”, which selects a light or dark Firefox theme based on your OS’s dark mode setting.
- cpeterso 3y agoFWIW, I think I just experienced a similar problem when updating Firefox Nightly from 119 to 120 (on macOS): I see light mode instead of my non-default theme, even though about:addons shows it is still selected. Update: I hit bug https://bugzilla.mozilla.org/show_bug.cgi?id=1855151 https://bugzilla.mozilla.org/show_bug.cgi?id=1855151 in Nightly 120. The timing of two theme bugs after updating Firefox is suspicious, but this bug would not affect ESR 115.
- hulitu 3y agoMine is on Win 7 and selected dark as default.
- cpeterso 3y agoI shared your problem report with a Firefox engineer. (I'm a TPM on the Firefox Android team.) If you email me your Firefox's about:support information (cpeterson at mozilla dot com), I will pass it along to the engineer. Had you already been using ESR 102 or 115 on Win 7? Or were you recently switched from the Firefox Release channel to ESR 115 (when Mozilla EOL'd Win 7 support in Firefox versions > 115)?