Hello A working environment (user) in a given situation does not correspond to a working environment (other user) in a given situation, please understand that it is difficult to give an opinion, in the absence of the relevant page. Allow or block media autoplay in Firefox. https://support.mozilla.org/en-US/kb/block-autoplay For information purposes. 1 - Go to configuration editor https://support.mozilla.org/en-US/kb/about-config-editor-firefox 2 - Enter a search term '''autoplay''' media.autoplay.default '''1''' this correspond to the situation Block Audio media.autoplay.default '''5''' this correspond to the situation Block Audio and Video media.autoplay.default '''0''' this correspond to the situation Allow Audio and Video '''media.autoplay.blocking_policy''' you can try '''2''' Can the preference, be useful to you?