Forbid blob: and video playback

[Mark42824]

I am having trouble with a few video sites where the video is greyed out and unplayable.

I have whitelisted the sites / subsiduary sites where the video is hosted, I have tried whitelisting all sites (bar known unrelated sites such as say, doubleclick).

There is one common factor - 100% correlation.

In the Noscript panel, a greyed out option appears "forbid blob:".

This includes one site who had an upgrade, where this "blob:" thing was previously absent (I prefer to temporarily allow rather than allow on most sites, so know what's there) and the domain I previously whitelisted to get the video to play no longer does the job.

What is this "blob:" thing?
Why is it appearing on more and more sites and why is it causing performance issues, particularly with videos?

....and more importantly, what can I do about it?

[barbaz]

What version of NoScript are you using?
Are you really using Firefox 83 on Windows?
Could you please post example URL(s) where this occurs?

[Mark42384]

Eek! Didn't realise you could see my (spoofed) user agent! I spoof it mainly for Google Drive which otherwise insists it's not compatable with 52ESR, despite working prefectly if I simply spoof my user agent.

I am using Noscript 5.0.8.1
Firefox 52ESR
Desktop, Windows 7 Home Premium

Example URL : https://mixdrop.co/f/x9damspj68

[barbaz]

Sorry, NoScript Classic is no longer supported and you're not even using the last NoScript Classic (5.1.9), we are not able to help.