3 ms·
According to https://support.mozilla.org/en-US/questions/1291071 https://support.mozilla.org/en-US/questions/1291071 it should be under Addons -> Themes, at lea
by sp332 6y ago
According to https://support.mozilla.org/en-US/questions/1291071 https://support.mozilla.org/en-US/questions/1291071 it should be under Addons -> Themes, at least in previous versions? But it was kinda buggy as of last month.