To use these add-ons, you'll need to download Firefox.

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Iceggiren i Progressive Web Apps for Firefox

Progressive Web Apps for Firefox sɣur Filip Štamcar

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Tiririt sɣur Filip Štamcar

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yeffeɣ-d deg 8 hónapja
Yes, it's related to Firefox 131 and has only been fixed in PWAsForFirefox 2.12.5.

I can't link it directly because URLs are not allowed here, but if you go to the GitHub repository, you should see PWAsForFirefox 2.12.5 on the right side under the releases section. Then, open the release and you should be able to download firefoxpwa-2.12.5-x86_64.msi under the assets section.