Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Changelog:

[Location Bar]

• (fix) Fx 126+ compatibility for 'megabar breakout disabled' option
• (tweak) mega bar popup> 'title and url' share ~50% of popups width
• (tweak) mega bar popup > 'url and title' share ~50% of popups width
• (tweak) mega bar popup > 'url only'

[about:preferences/about:settings]

• (fix) hide 'sync' category (wrong file in main release)

[about:addons]

• (new) hide "Addons Support" item

Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Replaced ":-moz-lwtheme" with ":root[lwtheme]" > Firefox 126+ compatibility.

[Tabs]

• (fix) tabs multiple lines > force new tab visibility > new tab glitch

[Location Bar / Mega Bar]

• (tweak) identity box tweak

[General UI]

• (tweak) close icon settings

[about:preferences/about:settings]

• (new) hide 'sync' category
• (tweak) added 'about:settings' url to all corresponding options

[about:addons]

• (fix) dark mode: add-on lists > replace buttons with icons

v2
[about:preferences/about:settings]

• (fix) hide 'sync' category (wrong file in main release)

[about:addons]

• (new) hide "Addons Support" item

v3
[Location Bar]

• (tweak) mega bar popup> 'title and url' share ~50% of popups width
• (tweak) mega bar popup > 'url and title' share ~50% of popups width
• (tweak) mega bar popup > 'url only'

Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Changelog:

[userChrome.css]

• (removed) addonbar_extra_bookmarks_toolbar_below_navbar.css, it code is once again part of addonbar_move_bookmarks_toolbar_to_bottom.css

[Buttons]

• (fix) icon color for reset button
• (fix) dark themes: buttons on bookmarks toolbar > old size and appearance
• (new) bookmarks menu button popup > hide "Show All Bookmarks" bottom item

[Tabs]

• (fix) tab close for only one visible tab

[Toolbars]

• (tweak) Addons-bar: included code for 'extra bookmarks toolbar'
• (fix) dark themes: icons + text mode & text mode

[General UI]

• (fix) Linux: 'page context menu > back, forward, reload and bookmarks button labels + icons'

[Preferences (about:preferences)]

• (fix) dark themes: alternative appearance v2

Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Changelog:

• Added macOS CSS code to already existing CSS files.
• Removed *_macOS.css settings.

Example
tabs_below_navigation_toolbar.css replaces tabs_below_navigation_toolbar_macOS.css and can now be used on macOS too.

Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Changelog:

[Buttons]

• (fix) options for 'button appearances on toolbars' (classic, aero, dark etc.)

[Toolbars]

• (fix) general toolbar colors (if dark OS theme is used, but no LW-theme is active)
• (fix) macOS: icons + text mode & text mode

[Location Bar]

• (fix) popup > hide 'Search with...' and 'Visit...' results
• (fix) popup > hide "suggest" label
• (fix) popup > two lines (completely rewritten)
• (tweak) popup > 'title and url' share ~50% of popups width
• (tweak) popup > 'url and title' share ~50% of popups width
• (tweak) restore urlbars visible border

Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Changelog:

[Tabs]

• (fix) tabs below navigation toolbar (incl. alt/macOS) > Firefox view button glitch
• (fix) "tab max width" option
• (tweak) photon tabs
• (tweak) "hide Firefox view button" option

[Location Bar]

• (fix) "autocomplete popup > two lines" option

[Buttons]

• (tweak) "rotate overflow button for open menu" option

Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Changelog:

[Location Bar]

• (fix) restore urlbars visible border

[Tabs]

• (tweak) classic squared tabs
• (tweak) classic squared tabs australized
• (tweak) default tabs photon
• (tweak) default tabs photon (alt)
• (fix) tabs below navigation toolbar (if dark OS theme is used, but no LW-theme is active)

[Toolbars]

• (fix) general toolbar colors (if dark OS theme is used, but no LW-theme is active)
• (fix) icons + text mode
• (new) top toolbar colors v2 (mainly for tabs below navigation toolbar option / top_toolbar_colors_v2.css)

Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Changelog:

[Tabs]

• (fix) classic squared tabs australized
• (fix) default tabs enhanced
• (fix) default tabs photon (alt)
• (fix) default tabs with colors

v2
[Tabs]

• (fix) default tabs photon
• (fix) default tabs photon (alt)

v3
[Tabs]

• (tweak) classic squared tabs > Firefox view button
• (tweak) classic squared tabs australized > Firefox view button
• (tweak) default tabs photon > Firefox view button
• (tweak) default tabs photon (alt) > Firefox view button

Firefox view button
The button is visible by default, but can be (re)moved in customizing mode.

Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Changelog:

[General]

• (change) general_variables_css: updated --addonbar_height variables value
• (change) userChrome.css: added note AeroGlass otions are not supported beyond Fx 116.

[Tabs]

• (fix) classic squared tabs
• (fix) classic squared tabs australized

[Appbutton]

• (new) Nightly icon for those, who want it on release channel too (appbutton_in_titlebar_icon_only_nightly.css)

[Buttons]

• (tweak) back/forward buttons > connected
• (tweak) back/forward buttons > connected to location bar

[General UI]

• (tweak) search bar > search popup > show labels with scrollbars

[Toolbars]

• (tweak) simulated add-on bar

[Location Bar]

• (fix) popup > hide 'Search with...' and 'Visit...' results
• (fix) popup > hide "suggest" label
• (fix) autocomplete popup > two lines
• (fix) mega bar popup > 'title and url' share ~50% of popups width
• (fix) mega bar popup > 'url and title' share ~50% of popups width
• (fix) mega bar popup > 'url only'
• (fix) restore urlbars visible border

v2
[Location Bar]

• (fix) autocomplete popup > two lines
• (fix) mega bar popup > 'title and url' share ~50% of popups width
• (fix) mega bar popup > 'url and title' share ~50% of popups width
• (fix) mega bar popup > 'url only'

v3
[Location Bar]

• (fix) autocomplete popup > two lines
• (fix) mega bar popup > 'title and url' share ~50% of popups width
• (fix) mega bar popup > 'url and title' share ~50% of popups width

v4
[Location Bar]

• (fix) popup > hide "suggest" label

v5
[Location Bar]

• (fix) autocomplete popup > two lines

v6
[Location Bar]

• (fix) autocomplete popup > two lines

Full changelog: https://github.com/Aris-t2/CustomCSSforFx/commits/

Changelog:

[Tabs]

• (fix) classic squared tabs
• (fix) classic squared tabs australized
• (fix) photon tabs
• (request) photon tabs option from v4.2.7 (buggy, not supported) (default_tabs_photon_alt.css)
• (new) classic squared tabs > old border colors for lw-themes (classic_squared_tabs_old_bordercolor_for_lwthemes.css)
• (new) 'all tabs' button always hidden

[General UI]

• (new) hide 'search bookmarks' from bookmark menus (searchbookmarks_hidden.css)

[Buttons]

• (fix) buttons on bookmarks toolbar > old size and appearance

v2

• (fix) simulated add-on bar + custom icon sets