You can report these websites using menu ≡ -> '''Report broken site''' or on the webcompat.com website.

I don't see any troubleshooting steps. Did you try with Firefox in [https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#search Troubleshoot Mode]? Looks like you're on the home page, this is what I get on the site. see screenshot https://www.pge.com/ Looking at the '''supported''' and '''unsupported browsers''', I get the felling that someone is getting donations from you know who. ;-))