Have you tried Firefox trouble shooting?

https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems

Yep, I did it first

And did you verify your DAC has correct drivers? As that isn't part of Firefox software so you should contact their support if this is coming from their software or device.

It is not comming from my device as I everywhere else it works fine, Fiio E10K works natively with windows 10. But yes I tried dowloading the drivers, which broke, as it is not ment to be used by this device

So how is DAC connected to Firefox browser?

Hm I think I didn't understand you right, you suggest that my USB DAC is working incorectlly? As in there is a specific malfunction that prevents me from using only YT (as other sites such as soundcloud web works just fine)? I did a fresh firefox reinstall, today also.

I just want to add that it isn't constant.

If this is USB DAC issue then you should contact their support about issues using their DAC device. Firefox has nothing to do with how the USB DAC functions or work since that isn't a Firefox software.

Yes I know that, I just want to point out that this should not be a DAC issue, as other software works fine, if it clears up the problem I just tested if the sound popping occures if I just use my standard sound card, and yes it does.

If you are referring to stuttering or buffering, I had the same problem but was able alleviate virtually all by going into the "Settings" (round spoke wheel icon) and stopping "Ambience Mode" and "Annotation" if either or both are present. They are Not necessarily on each music selection webpage.

(Doing a search and you will see ambience affects the video, highlights, causing more memory/cpu/gpu to be used, from my understanding.)

Hope this helps.

Sam

Hi thanks for the input! I've heard that it helps with the stuttering however what I am experiencing is strictlly audio nad I hear a faint popping thingy, It may be closer to the effect to when the processor doesnt have enought throughput to pass everything (I dont know if its clearer), but I tried doing test with higher bitrate and it continues. I encountered the solution you are mensioning unfortunatelly it didnt help. Thank you though!