From https://github.com/mozilla/multi-account-containers/issues/1867, but the extension itself is probably not the culprit as its last update was two months ago. 1. Prepare an empty Firefox profile, on Windows 10 64bit 2. Install this Container extension 3. Open twitter.com and sign in 4. Duplicate the tab with a container, and sign in too 5. Open wikipedia.org 6. Duplicate the wikipedia tab with a container 7. Close the browser 8. Open the browser and restore the session 9. See the results Expected: Two Twitter tabs with different containers and two wikipedia tabs also with different containers Actual: Two Twitter tabs with the same default containers and two wikipedia tabs with different containers This started happening on this week.
Bug 1665942 Comment 0 Edit History
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From https://github.com/mozilla/multi-account-containers/issues/1867, but the extension itself is probably not the culprit as its last update was two months ago. 1. Prepare an empty Firefox profile, on Windows 10 64bit 2. Install this Container extension 3. Open twitter.com and sign in 4. "Reopen in Container", and sign in too 5. Open wikipedia.org 6. Duplicate the wikipedia tab with a container 7. Close the browser 8. Open the browser and restore the session 9. See the results Expected: Two Twitter tabs with different containers and two wikipedia tabs also with different containers Actual: Two Twitter tabs with the same default containers and two wikipedia tabs with different containers This started happening on this week.