Fellow ADHDr here, also living the many tabs life. I highly recommend the Sidebery addon (Firefox). Not just tree style tabs, but tree style tabs with customiz

Fellow ADHDr here, also living the many tabs life. I highly recommend the Sidebery addon (Firefox). Not just tree style tabs, but tree style tabs with customizable panels so you can sort everything out quite tidily. I'm able to manage hundreds of tabs without mess, and prune through them on a weekly basis seeing what needs to be bookmarked or can be safely forgotten.