apps not reopening and no way to find them

so firefox was recently updated and I had about 30 or so tabs under different tab groups in two windows. I just did the update, but when it restarted, it only reopened half of the tab groups (one window) but each tab itself was blank and there was no link in the space so there was no way to refresh them. I went to recently closed history but there's nothing there cause the tab groups had been up for a while so they weren't recent. also the new history is really confusing and unclear to navigate. I want all my tabs in the tab groups back, especially because I don't remember what each tab was. please help