@trashheap I maybe know too little to become worried about Firefox and Mozilla in general. I know their market share is (too) small although stable 2023 vs 2022. I know Ff works well for me. I returned to Thunderbird last year (from Apple mail) because I wanted Tb, I was going to migrate to Linux (done) and it's FOSS/FLOSS. Yeah, i think Tb has gotten a revival since it became a separate comp within Mozilla group. And they will start use Firefox sync (now Mozilla sync).