In Options > Applications > Content Type, the developers deleted several extensions, as an example, MP4 Video. I've been trying to add it to Version 100.0 without success! Is there a way to add Content Type i.e. MP4, TIFF and etc. ?
"I don't think any of those were built in. You may have added those items over time using the old method:" I never opened the following types: CAB, CSV. DWG, MSI and Quick Time. They were included in an older version of Firefox... However, shouldn't...
"Hmm, did it add anything that mentions MPEG or video?" No."If you try the download again, does it open automatically this time?" No. With Firefox version 85 and earlier, I was able to click on a MP4 file in my email account and it would open automa...
When I get to step: "3) Right-click the download and choose "Always Open Similar Files". This will add a new entry to the Applications list with the "Use [relevant application]" action." The action does not add the Applications > Content Type (extens...
