Chrome can save a tab group, but only the addresses. Back Pocket saves each tab's Back history with it, so when you restore a group, the Back button still works.

Free:

• Save a whole group, a single tab or a selection in one click (or right-click any page, or Alt+Shift+S), and restore it later as a real Chrome group with its name and colour

• Every tab keeps its Back history, up to 50 pages

• While a group is open it stays linked to its saved copy: add, close or browse its tabs and the saved group follows

• Every window, group and tab on one page, or in Chrome's side panel beside what you're reading

• Duplicates highlighted (same link or nearly the same title): compare a set side by side, keep one, close the rest

• Search titles, links and every page in each tab's history

• Restored tabs load only when you click them, so even a big group costs almost nothing

• Drag tabs between groups and windows, merge all windows into one, undo any change

• Import Chrome bookmark folders, a bookmarks file or a list of links; export a backup any time

Pro (optional):

• Tab sleep: put tabs to sleep in a click, or let the ones you haven't used sleep by themselves. Memory freed, place kept

• Sync between computers through a hidden folder in your own Google Drive

• Daily backups, kept for 30 days, ready to restore

No sign-up, no ads, no tracking; your tabs never reach a server of mine.

Chrome Web Store: https://chromewebstore.google.com/detail/hpihlojfcfnmcnaafeepfdgbfjoipfkb