So I had to reset my entire computer (deleting everything, keys, files, all that) and since I was logged in with my Firefox account in my browser, I assumed all my bookmarks would be synced to the account and I thus forgot to make a file of them before the reset. But when I reinstalled Firefox and logged in, none of the bookmarks were there. For a few days I could still see them on my phone so I clicked sync there in the hopes, they would then show up on my desktop but instead they are now all gone on my phone, too (which is obviously the opposite effect of what I wanted).

However, I can still see the synced tabs of the previous version of my desktop Firefox, which gives me a glimmer of hope that my bookmarks from that version aren't completely gone yet. But I have no idea if there is any way to access them, which really frustrates me. Is there a solution for this? Those bookmarks were very important to me.