Classic Theme Restorer 1.3.0beta9
https://addons.mozilla.org/ja/firefox/addon/classicthemerestorer/versions/
[locale] Upper Sorbian (hsb) translation updated (thanks to milupo)
[locale] Lower Sorbian (dsb) translation updated (thanks to milupo)
[fix] squared tabs: pinned tabs glitch
[change] improved "The Fox, only better" support (thanks to Luis M.)
[change] squared tabs: removed unused code (needs testing)
[change] squared tabs: tweaks for TabMixPlus (needs testing)
[change] Windows/Linux + context menu entries option: access keys
