How To Change The Menu And Interface Language In Firefox
Firefox interface, menu, and notifications can be viewed in different languages just like that in the Edge browser.
Here is how to change the menu and interface language in Firefox:
Go to Tools > Options.
Alternatively, type in the address bar:
about:preferences
Scroll down to the Language section. Click on Set Alternatives to select a different language.
You can also directly search for languages...
How To Change Preferred Language For Displaying Webpages In Firefox
Mozilla Firefox has an option to display webpages in various different languages if those languages are supported by the given website. What this means is that if a website supports multiple languages (like a German website  primarily displaying webpages in German language and also in English for international visitors, it can be useful to render pages like those in native language through this...