I said 100+ per instance ;) It's closer to 500 or so at a given time. I have a few instances that only run up a dozen or two tabs in their lifetimes. I do lot

I said 100+ per instance ;) It's closer to 500 or so at a given time. I have a few instances that only run up a dozen or two tabs in their lifetimes. I do lots of research on a variety of topics, and break it up with ADHD wikipedia binges and the like, then with aggregators like HN it's very easy to open a dozen or two tabs and just start powering through them. Some of these tabs sit for weeks, and some just rot away till they are irrelevant and I delete them. You could think of this as a temporary bookmarking system, much in the way you may have a filing cabinet but your desk still stays covered with mountains of papers that are relevant to your current work. I keep a bookmark bar with just favicons and no text. Only my most-used sites for the domain on which the instance runs. When this bar fills up, that's it. I either make room for new items or they aren't important enough. I have a folder for more "long term" bookmarks that I basically never check. This way, I only keep links to stuff I currently need. Firefox doesn't load them on default so it's very quick and non-resource hungry. It has to be or I couldn't be running 3-4 instances of Firefox at once, when you factor in all of the VM overhead. I don't use Tree Style tabs like sister comment suggests. I have an unorthodox browsing style that doesn't mesh well with the way it sorts tabs. Besides, the API it uses is indeed being phased out. I prefer using the location bar to quickly search my tabs. In general, bookmarks just have a limited use-case for me because, if it's static and information-dense I would probably rather save an offline copy anyway in the spirit of doomsday prepping.