If you have many tabs open, it’s good to schedule some time to put these into a bookmark manager, memex, org brain, tiddlywiki, or equivalent. I’ve found they’re open usually because the work on each tab is unfinished. I’ve got to read this, I want to remember this, or this could help me with a project, are the categories my tabs often fall into. An inbox zero approach to tabs is what I’m working towards.