Ever since the last TB update through Ubuntu Linux, I have to restart if I haven't checked downloaded messages, this only occurs after about 60 minutes of not checking/reading emails. I have TB open all day, with it checking for new messages on a preset time cycle, been using it this way since around '99/'00 (I think) when I first started using it. My health is poor so, I only check to see what's new every couple of hours or so. When I start to read new emails, I double click on 1st unread to open in its own window, most emails are then deleted, and this is where I have trouble, the next email shows as a blank window, with TB showing the Loading bar in the LR corner. At this point, closing the email's window & reopening on it, makes no difference, TB just hangs on "opening email". The only way to fix this is by restarting TB, and even then, it may require 2-3 more restarts to be able to read the rest of the downloaded messages. Then, if I don't try to read any emails within the (approx) 60 minute time frame, the issue reoccurs. Thunderbird version: 140.2.0esr (64-bit) System Details Report --- ## Report details - **Date generated:** 2025-09-13 18:01:31 ## Hardware Information: - **Hardware Model:** ASUS ROG CROSSHAIR VII HERO _WI-FI_ - **Memory:** 32.0 GiB - **Processor:** AMD Ryzen™ 7 2700 × 16 - **Graphics:** Radeon™ RX 580 Series - **Disk Capacity:** 5.5 TB ## Software Information: - **Firmware Version:** 4603 - **OS Name:** Ubuntu 24.04.3 LTS - **OS Build:** (null) - **OS Type:** 64-bit - **GNOME Version:** 46 - **Windowing System:** Wayland - **Kernel Version:** Linux 6.8.0-79-generic