Extension "crash" - Iron now unusable

[SRWare]

Please delete all extensions and then reinstall them - that should work:
C:\Users\user\AppData\Local\Chromium\User Data\Default\Extensions

Bookmarks are saved at:
C:\Users\user\AppData\Local\Chromium\User Data\Default\Bookmarks

You should nevermind generally save your profile regular via the Config & Backup Tool

[SRWare]

Question: I saved the Bookmarks file elsewhere. If I had to reinstall Iron, would simply copying that saved Bookmarks file back from where I grabbed it have restored the bookmarks?

If you put it back to exactly that folder - it should work.