I found a few tricks that help. You probably open a ton of tabs
   like I do when researching. There's a way in each browser to
   save ALL open tabs at once. I do that frequently. This captures
   the "stuff I was thinking about at this time". I save the
   folder, named the date and time, something like 20160304_1015pm.
   Then it's safe. I can go back to "what I was thinking about" 2.5
   yrs ago, see all the open tabs and go "Oh yeah!" and it puts me
   right back there. == yeah unfortunately stopped most of my
   customizing experiments for that reason: so many dependencies
   that a single unwanted upgrade of a portion of it, or a crash at
   the wrong time, and then it's hard to get everything back
   together again. I run mine uber vanilla. Waterfox, hidden menus
   and status, and that's about it. I even use system colors, which
   I have set to system as well. Helps with speed but it makes my
   computer look like Windows95 tongue emoticon ==