Tabs box
It's a plugin for Chrome which allows to work with 'tabs boxes'. Tabs boxes it's a simple mechanism to organise tabs.
For example you have a lot of tabs related to different topics, for example Math, Algorithms and Music. You can create 3 tabs boxes, put all tabs related to Math to the first box, tabs related to Algorithms put to second one and etc. Now you have an easy way to work with this tabs. You can select tabs from the box, search tabs, organise it whatever you want or event close it - tabs saves into a box and you can reopen it at any time.