Crunchyroll With Better Seasons от Dragicafit

Crunchyroll With Better Seasons is a cross-platform browser extension that changes the way seasons are displayed on Crunchyroll and adds the subtitles to the dub episodes.

Old features now supported by Crunchyroll direclty:

On the serie page, it groups all audio languages into a single seasons and reorder the seasons with a better numerotation.

On the episode page, it adds a setting to change the audio language.