TooManyTabs - Ever tried having 20 tabs or more open in Chrome?
Linkman - Linkman Pro allows for managing large amount of URLs in its own database.
Dustman - Firefox extension to close unused tabs.
Firefox Sync - Bring your Firefox bookmarks, tabs, or passwords wherever you go with Firefox Sync. Share between computers and mobile devices. Get Firefox now!
Pocket - When you find something you want to view later, put it in Pocket.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.