Can't Edit My Google Site - Solution

Problem: Editing a Google Site in Google Chrome keeps throwing error messages.
Solution: Edit the Google Site in Firefox.

I was trying to edit embedded HTML code. I got:

   Aw Snap! Something went wrong while displaying your document.
   To continue, please reload your browser
   Code: 3c4daba
   Error: Client Error

The error code appears to change every time. I got 388abdc and 3b7f02b and 510fb2c and b3324e and 77846a. At that point, I gave up and Googled my problem. I found a forum comment about a totally different Google Site editing problem that was solved by switching from Chrome to Firefox to do the editing. That seemed counterintuitive, but I tried it, and it worked.