

Read this answer in context 👍 4 All Replies (5) I'm sure we'll learn more about the interaction of these various preferences and what sites can bypass them as more users begin to run Firefox 63. Double-click the preference and set it to 0 (or right-click > Reset).Double-click the -gestures-needed preference to switch the value from false to trueĪllow autoplay by default (default for Release).Double-click the -permission preference to switch the value from false to true.Double-click the preference and set it to 2.*Edit* Some people suggest you also: Double-click the -muted preference to switch the value from true to falseĪsk on a site-by-site basis (default for "Nightly").Double-click the preference and set it to 1.(2) In the search box above the list, type or paste autop and pause while the list is filtered Click the button promising to be careful or accepting the risk. (1) In a new tab, type or paste about:config in the address bar and press Enter/Return. The old preference has been replaced by several new ones (you may see it, but Firefox ignores it). For now, you'll still need to use about:config. Hi chrissporter, these hidden settings have evolved in preparation for being added to the Permissions section of the Preferences page in a later release. For Firefox 66, see: Allow or block media autoplay in Firefox
