This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Widevine CDM 4.10.2209.1 update April 21, 2021, crashes every time in Firefox 78 browser

more options

The Widevine CDM 4.10.2209.1 plugin crashes every time in Firefox 78 browser. Was updated on April 21, 2021, maybe it's a bug? I'm not able to uninstall the plugin. Any help would be appreciated, thank you!

The Widevine CDM 4.10.2209.1 plugin crashes every time in Firefox 78 browser. Was updated on April 21, 2021, maybe it's a bug? I'm not able to uninstall the plugin. Any help would be appreciated, thank you!

All Replies (2)

more options

Solution found on this thread: https://support.mozilla.org/en-US/questions/1333571?page=1

Namely, by doing this: "Rolled back to 78.9.0esr and this solved the problem. Downloaded here: http://ftp.mozilla.org/pub/firefox/releases/78.9.0esr/mac/

This also requires turning off auto updates on Firefox via Preferences. The above webpage has many varieties of FF. So look for the US Eng version.

I used this page: http://ftp.mozilla.org/pub/firefox/releases/78.9.0esr/mac/en-US/