🦊 v6.6.0
New
v6.6-sidebery-expand-styles.mp4
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Added
uc.flex.sidebery-expand-styleto customize the expand and collapse animation of Sidebery and Native Vertical Tabs:1 = Balanced (`ease-in-out`; smooth and even, default) 2 = Unfolding (`ease-out` / `ease-in`; content is revealed progressively) 3 = Swift (`easeOutQuart` / `easeInQuart`; expands quickly and settles gently) 4 = Snappy (`easeOutExpo` / `ease-in-expo`; expands abruptly and collapses with a firm finish) -
Added
uc.flex.sidebery-expand-durationto set the animation duration:1 = `115ms` expand / `55ms` collapse (default) 2 = `160ms` / `80ms` 3 = `200ms` / `100ms` 4 = `340ms` / `220ms`Longer durations make the differences between animation styles easier to see.
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Added
uc.flex.sidebery-expand-delayto set the hover delay before Sidebery and Native Vertical Tabs expand:0 = No delay 1 = `80ms` (default) 2 = `160ms` 3 = `350ms` 4 = `460ms`This setting also controls the expand delay of horizontal tabs and toolbars.
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Added
uc.flex.sidebery-expand-widthto set the expanded width of Sidebery and Native Vertical Tabs:1 = `220px` (default) 2 = `240px` 3 = `260px` 4 = `280px` -
When Mica, wallpapers, or
uc.flex.sidebery-apply-expand-speed-to-toolbarsis enabled, these animation settings are also applied to horizontal tabs and toolbars. -
All four preferences default to
1, which preserves the same behavior as versions before v6.6. Change the values manually to use the new styles, timings, or widths. -
Settings used in the preview:
uc.flex.sidebery-expand-delay = 2 uc.flex.sidebery-expand-duration = 2 uc.flex.sidebery-expand-style = 2 uc.flex.sidebery-expand-width = 2
Breaking Changes
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The following preferences are deprecated and no longer work. Remove them from
about:configto keep the FlexFox preference descriptions aligned:uc.flex.sidebery-fast-hover-expand → Replaced by uc.flex.sidebery-expand-delay uc.flex.sidebery-slow-hover-expand → Replaced by uc.flex.sidebery-expand-delay uc.flex.increase-sidebery-expanded-width → Replaced by uc.flex.sidebery-expand-width -
Updated the available values for
uc.flex.findbar-position:top-left or 1 = Top left top-right or 2 = Top right bottom-right or 3 = Bottom rightThe previous
top-center-leftvalue no longer works.
Improvements
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Improved the findbar appearance:
- Smoother and more consistent edges.
- Better blur and shadow effects with Mica and wallpapers.
uc.flex.style-sidebar-stripe-color-apply-to-all-iconsnow also colors findbar icons.
- Centered bookmark folder icons when folder labels are hidden, including their Nova UI hover background.
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Added support for Nova UI gradient tab borders. Set the colors with
uc.flex.style-sidebar-stripe-color:0 = Nova UI default gradient 1–10 = FlexFox accent color gradients -
Added translucent background support for the Link Preview Panel.
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Added Nova UI styling for
about:config.
Fixes
Sidebery UI
- Rounded the bottom corners of the last button in Sidebery’s vertical navigation bar.
- Fixed a v6.5.6 regression that showed the wrong active panel icon when Sidebery was collapsed.
- Fixed incorrect tab badge colors with Sidebery v5.6.0 and later. Commit ec84311
Firefox UI
- Fixed several missing or incorrectly displayed icons.
- Fixed the sidebar stripe position when
sidebar.visibility = expand-on-hover. - Fixed Nova UI layout issues on
about:addonsin Firefox 154. Bug 2051559 - Fixed Sidebery and Native Vertical Tabs not expanding in fullscreen in Firefox 154. Bug 1927457
- Fixed inverted context-menu icon colors in Firefox 154. Bug 2048186
- Fixed findbar layout issues in Firefox 154. Bug 2048907, Bug 2056829
- Fixed
uc.flex.enable-rounded-web-contentin horizontal tab layouts in Firefox 154. Bug 2047653 - Fixed incorrect tab group backgrounds in Firefox 154. Bug 2046942
- Restored tab group hover backgrounds in Firefox 155. Bug 2023691
- Restored pinned tab borders and backgrounds in Firefox 155. Bug 2023619
- Fixed mismatched panel corners in Firefox 155. Bug 2054953
- Added a temporary workaround for Native Vertical Tabs layout issues above 125% display scaling in Firefox 155. Bug 2044082
- Fixed numerous layout and functionality issues caused by Nova UI becoming enabled by default in Firefox 155. Bug 2056188


