: To see subtitles in the floating window, you must first enable them in the original video player on the webpage.
While Mozilla Firefox does not have a built-in "Live Caption" feature that automatically generates text from audio like Google Chrome, it offers robust support for English subtitles through its mode and third-party extensions . Native Subtitle Features Firefox subtitles English
: You can customize subtitle styling (font, size, and background) for PiP mode within the browser's accessibility or hidden settings. Recommended Firefox Extensions : To see subtitles in the floating window,
For sites that don't natively support subtitles or for more advanced features, you can use specialized extensions from the Firefox Add-ons store : Add Subtitles – Get this Extension for Firefox (en-US) Firefox subtitles English