Hi Charlie,

Are you by chance, experiencing the same issue as the following bug? https://bugzilla.mozilla.org/show_bug.cgi?id=1963549

Yes, the same issue

Thanks for confirming.

We've received multiple reports about this, however, our team hasn't been able to reproduce this issue.

To help our team with this, can you please try to click the new sidebar toolbar button, click the bookmarks button from the sidebar (the star icon), and let us know if you can see the bookmarks sidebar by following these steps?