Instead of only visible if website language is different from desired language, it will be always visible, so even if it's a page with your desired language, you still have a visible button to translate to other languages.
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Hello
Firefox Translations https://support.mozilla.org/en-US/kb/website-translation
A similar discussion https://bugzilla.mozilla.org/show_bug.cgi?id=1876287
+1
add context menu this function
never-displayed