Fixes for Firefox 109+ might not be compatible to Firefox 102.x ESR.
4.2.9pre1
(Fx109+) fix: addonbar_move_bookmarks_toolbar_to_bottom.css > findbar position
(Fx109+) fix: addonbar_extra_bookmarks_toolbar_below_navbar.css > restore bookmarks
4.2.9pre2
(Fx110+) fix: addonlists_show_buttons_instead_of_menu_popup.css > hide icons
(Fx110+) fix: addonlists_replace_button_labels_with_icons.css > restore icons
4.2.9pre3
(Fx109+) removed addonbar_move_bookmarks_toolbar_to_bottom_tabs_on_bottom_webcontent_compatibility.css
(Fx109+) fix: addonbar_move_bookmarks_toolbar_to_bottom.css > tweak
(Fx109+) fix: tabs_below_main_content.css > content overlapping (thanks to @DeVaulted)
4.2.9pre4
(Fx109+) fix: addonbar_move_bookmarks_toolbar_to_bottom.css > tweak
(Fx109+) fix: addonbar_extra_bookmarks_toolbar_below_navbar.css > bookmarks position
fix: tabs_multiple_lines.css > typo (thanks to @glennpc)
4.2.9pre5
(Fx109+) fix: tabs_below_main_content.css > hide in tabs toolbar in video fullscreen
(Fx109+) fix: addonbar_move_bookmarks_toolbar_to_bottom.css > hide bookmakrs toolbar in fullscreen and video fullscreen