Does anyone have this issue were firefox becomes slow if left open for a long time. In my case after a couple of weeks rendering becomes slow and when I use youtube for example if is laggy, just trying to change volume taka few second to show the volume bar. It also happens to my laptop at work. I have around 30 tabs open.
I currently have a bit over 2400 tabs open, and it has been roughly a month since I restarted firefox for being too laggy. It is becoming an issue again.
Seek help…