I'm freaking out rn I'm having [https://support.mozilla.org/en-US/questions/1254740 this exact problem] except the provided solution will not work and firefox keeps loading into a blank tab called "New Tab". I had about 2700 tabs open, I've basically been using firefox as my long-time memory for the last few years. I did backup the previous.jsonlz4 file, which I extracted with [https://github.com/avih/dejsonlz4 this tool] and validated with [https://jsonlint.com/ this one] so I can guarantee the file isn't corrupted or anything. I've been trying everything except maybe using an older version of firefox for the past two hours and nothing works out, I'm truly getting desperate about this as losing this session would void multiple years of my life, the jsonlz4 file is 22,749,454 bytes large (21.6mb) and the (compact) extracted json is 103,335,520 bytes large (98.5mb). If I have to edit some source code and compile all of firefox to make this work I will just please give me a solution.