If you accidentally changed your Firefox language to any other, then this post shows how to change the language to English in Firefox.

How to change language on Signal using the desktop app On the desktop version of Signal, the language used in Signal will match that of your computer's general settings.

Amazon lets you change the default language on its website or mobile app, though it doesn't make every language available in every region globally.

Like other Settings, the Steam language setting determines which language the Steam client application displays, as well as the language in which games are presented. If needed, you can change it ...