> What about if you had pages open that you don't want to lose (literally hundreds of tabs)?

There's always one of these in every discussion about a web browser. That one person who, instead of bookmarking things, keeps literally hundreds of tabs open.

(Some of my best friends are "this guy")

Then you should first change your browsing habbits, and probably several other ways in which you organize things in general. And ask yourself if you really understand modern technology.

Second, you could save all the open tabs as bookmarks, with the Bookmarks -> Bookmark all Tabs command. It will save all open tabs in a new bookmarks folder.

Lastly, when you reopen the browser after the update, you can click File -> Reopen closed tabs, which will reopen all of those, even if you haven't bookmarked them.

I use OneTab[1] to dump tab state.

[1] https://chrome.google.com/webstore/detail/onetab/chphlpgkkbo...

Why not save open tabs as bookmark folder? Then reopen the bookmark folder as a tab-set? I know you can do this with FF (maybe +ext).

you can right click on a tab to bookmark all tabs to be safe.