TabSync Pro - manage and synchronize your tab between devices and browsers. Cloud account is required, you can use your existing Gmail / Facebook / Twitter account: https://tabsync.fastaddons.com/ Top features:

Cloud tabs - access your tabs on all your devices even when they are offline - using any web-browser, including your phone! tab management - organize tabs remotely on your PC at work from home No Ads!

Features coming in future releases:

Undo / Redo / History for easy revert of changes (separately for each device) reordering devices drag and drop whole windows nicer cloud tabs page with more options support for Firefox containers sessions management