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Gmail sidebar calendar missing

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Never had an issue with my Gmail sidebar calendar loading automatically on Firefox. With the latest Mozilla update to 114.0.2 for my Mac, the calendar sidebar flashes the calendar icon but fails to load. The other sidebar apps are functional. I can load my full calendar in a new tab with issue. Signed into my Gmail account on Chrome and Safari and the sidebar displays as it should.

Never had an issue with my Gmail sidebar calendar loading automatically on Firefox. With the latest Mozilla update to 114.0.2 for my Mac, the calendar sidebar flashes the calendar icon but fails to load. The other sidebar apps are functional. I can load my full calendar in a new tab with issue. Signed into my Gmail account on Chrome and Safari and the sidebar displays as it should.
Bafoto sur écran jointes

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I recently started having this problem, too, both on Linux and Windows versions of Firefox. I've tested on Chrome, also on Linux and Windows, and the Google Calendar sidebar shows up just fine. I've tried in Troubleshoot Mode, too, but no luck.