IMPORTANT NOTE: I already have the Check mark clicked in Settings to "open links in tabs instead of new windows" so please don't suggest that. I tend to have a lot of tabs open (more than 100) in Firefox. Until it recently updated, no matter how many tabs I had open, if I opened a new tab, it would do so in the same window. Now, after the update, I have about 60 tabs open and anytime I open a new tab from my current window, it will after a few seconds switch to opening a new window, which is very annoying. Does anyone have any suggestions on how to fix it? Thank you very much for your help!