I upgraded to 89 this morning and suddenly realized "RIGHT CLICK menu" is NOW BLACK. The only way to change that is apply a lighter theme, and then, WOW, I get WHITE menus.
I like the tab design, but this limited menu idea is bad and no longer allows Windowblinds on WIN10 64 to apply a blind to said menus, forcing us to use ugly Black or White menus. By the way, what's with the constant use of BLACK? You SHOULD have provided a switch that allows users to revert to previous formatting. Then you say revert back to older version, but then repeat don't do it for security reasons. If Firefox isn't secure by now, all the updates you've been doing are fake. You also make it difficult and time consuming to swtich to previous version. Mozilla, you keep changing areas that don't need changing, and use security as the reason, pretty weak.