I had quite a few tabs open for quite a while on my laptop, due to working on a project. If Firefox closes or crashes, I can usually restore them through the "Restore Previous Session" option, but this last time, there was no option. I had clicked on the Firefox icon several times because it wasn't responding (I thought my touchpad was not responding), and when I used "Restore Closed Tabs," all that opened were the multiple Firefox windows. I really need those windows, and since there are over 40 from over several weeks, there is no way I can go through the history and find them one by one. What can I do? Thank you