PSU: Enermax NAXN 450W
MB: ASRock B365M-HDV
CPU: DualCore Intel Pentium Gold G5420, 3800 MHz
GPU: Intel(R) UHD Graphics 610 (1GB)
I don't think any cleaning program would help.
I installed Tab Session Manager from the beginning after refreshing Firefox, and despite this, it still don't restores new sessions.