You can block the YouTube ads in Firefox for Android by using the free uBlock Origin add-on.
Or if you want to block even more annoying things, like sponsored segments / paid promotions or even off-topic sections (using highly customisable options) and also add additional features, like being able to play the audio while the screen is off and playing YouTube in a mini window, you can get the free Android app YouTube ReVanced.
You can block the YouTube ads in Firefox for Android by using the free uBlock Origin add-on.
Or if you want to block even more annoying things, like sponsored segments / paid promotions or even off-topic sections (using highly customisable options) and also add additional features, like being able to play the audio while the screen is off and playing YouTube in a mini window, you can get the free Android app YouTube ReVanced.