User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:62.0) Gecko/20100101 Firefox/62.0 Steps to reproduce: Visited this bookmark: https://www.google.com/search?lr=&hl=en&tbs=qdr:w%2Citp%3Aphoto&tbm=isch&sa=1&q=arctic+%22cabinet+card%22+-eBay+-marineantiques+-DelGado+-picturehistory+-sealaskaheritage+-familyoldphotos+-railsplitter&oq=arctic+%22cabinet+card%22+-eBay+-marineantiques+-DelGado+-picturehistory+-sealaskaheritage+-familyoldphotos+-railsplitter&gs_l=img.12...4102.16014.0.17594.14.14.0.0.0.0.0.0..0.0....0...1c.1.21.img.cnipDibcoRk&bav=on.2,or.r_qf.&biw=1036&bih=1755&cad=h Actual results: Earlier versions of firefox displayed the images. Versions 62 and 63 load the page with the text but without the images. This bookmark works fine in Safari & Seamonkey. I've tried deleting cache, deleting all google cookies, played around with the "i in the circle" to the left of the address bar, disabled adblocker, etc. I've googled the problem for hours. Expected results: This link should have shown images from a google image search. I just tried creating a new google search from scratch. I searched google for ("cabinet card" arctic) then clicked on images. I got the same result, the images won't load in firefox 62. Earlier today the images wouldn't load in the latest beta firefox 63. MacBook Pro Mid-2018 15 inch 2.6GHz 6‑core 8th‑generation Intel Core i7 processor OS X 10.14 Memory: 32 GB Radeon Pro 560X with 4GB of GDDR5 memory

The URL works for me with Firefox64 and Firefox 63 on Windows10. Please switch Firefox into the safemode and load the URL again - https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

(In reply to Matthias Versen [:Matti] from comment #1) > The URL works for me with Firefox64 and Firefox 63 on Windows10. > > Please switch Firefox into the safemode and load the URL again > - > https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe- > mode Same problem in safe mode on my mac.

Could you try the Firefox refresh feature ? - https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings

(In reply to Matthias Versen [:Matti] from comment #3) > Could you try the Firefox refresh feature ? > - > https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and- > settings After refresh it seems that firefox won't let me visit any site (at least the few that I tried). I get this message: "Your connection is not secure The owner of www.google.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website. This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate."

(In reply to Matthias Versen [:Matti] from comment #3) > Could you try the Firefox refresh feature ? > - > https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and- > settings Finally solved the "Your connection is not secure" problem when a "restore default settings" window popped up. Refresh didn't solve the problem of the images not loading on the google images search. Would restoring default settings have negated the refresh??

The "connection is not secure" error is strange and I do not know anything about the "restore default settings" window. Are you in a company network where something is breaking up https connections ? anyway, i can not reproduce the problem and I also checked Firefox on OSX. The refresh function should have worked and I do not know why you have this problem that I can not reproduce. AV software could be another reason but that is only on windows systems.

I also tested on Ubuntu 16.04, Nightly 64.0a1 (2018-10-14) and Firefox 62 and cannot reproduce it. I think setting the Core :: Image Blocking component would be a good starting point.

:aosmond, can you comment to the bug?

If I had to guess, I would suspect this is WebP A-B testing, similar to bug 1498779.