Make sure you are not blocking content.

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

One issue that seems more common lately is Firefox's Tracking Protection feature. When it is blocking content in a page, a shield icon will appear at the left end of the address bar next to the padlock icon. This article has more info on managing this feature: Tracking Protection {web link}

Thank you Fred, that does make a difference.

The question for me is how do change Firefox back to the way it was so that I can just quickly right click and download a picture. This is part of my job at the moment. A perfect example is this afternoon's haul where out of some 30 or so pictures at least half did not download using the regular method.

It is not practical for me to run Firefox in safe mode all the time. Having to load a picture in View and then save adds more time to my tasks. Looking at your ink on Tracking Protection, I gather it would not be a good idea to switch that off altogether.

So what do I do in order to go back to being able to simply right click and save picture? I should stress that this is a huge annoyance that is affecting work right now and if I can't find a way to resolve this quickly then I will simply switch to a browser that doesn't have these frustrating issues.

https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes). If the problem goes away, that tells us one thing. If it does not, that tells us something else.

So, you are saying the issue goes away in Safe Mode?

It could be the work of one of your add-ons, or it could be Hardware Acceleration. How to disable Hardware Acceleration {web link}

Type about:addons<enter> in the address bar to open your Add-ons Manager. Hot key; <Control> (Mac=<Command>) <Shift> A)

In the Add-ons Manager, on the left, select Extensions. Disable a few add-ons, then Restart Firefox.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All Of them.

If the problem continues, disable some more (restarting FF). Continue until the problem is gone. After, you know what group is causing the issue. Re-enable the last group ONE AT A TIME (restarting FF) until the problem returns.

Once you think you found the problem, disable that and re-enable all the others, then restart again. Let us know who the suspect is, detective.

Yes it appears to be something called Widevine Content Decryption Model Provided by Google. After I disabled that the problem cleared up

That was very good work. Well done.

Hi all:

The problem has come up back and this question was re-asked here: https://support.mozilla.org/en-US/questions/1239001 Therefore I am closing this older thread which is now a duplicate.

Cheers!

...Roland