On 10/16 I reported here a corrupt session file that broke Firefox. Finally resolved for the most part. [https://support.mozilla.org/en-US/questions/1393157 Firefox sync sessions?] Today, I launched Firefox 106, and all my pinned tabs were missing, on several differently customized profiles with the same session. I reverted back to Firefox 105.03, and the pinned tabs on all those tested profiles '''reappeared'''. Can somebody check this out? It may be a coincidence, but this is too close for comfort.