I have a couple of videos open on Firefox. As I refer to them often, I prefer to keep them as a tab rather than as a bookmark. However, every time I reboot Firefox, they start to play. Can I have them come up but not start to play until I select them to start? Thanks.
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10 Answers
Install Stop Autoplay Extension from Mozilla could be the best answer https://addons.mozilla.org/en-US/firefox/addon/1765/
You can stop all the video following any of these methods mentioned here http://www.howtogeek.com/howto/internet/firefox/stop-youtube-videos-from-automatically-playing-in-firefox/
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This also seems interesting.+1. I will try it as soon as I can remove flashblock. Thanks. Commented Sep 8, 2010 at 23:21
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This was gone by the time I got there, but I found addons.mozilla.org/en-US/firefox/addon/6648 so you will get the accept. Thanks. Commented Nov 14, 2010 at 22:30
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@Xavierjazz and subanki: Both addons.mozilla.org/en-US/firefox/addon/6648 and addons.mozilla.org/en-US/firefox/addon/1765 are now not available for download and are marked as having "been removed by its author". Commented Jan 12, 2015 at 3:49
As of Firefox 69, you can now configure Firefox' settings to block all or specific websites from autoplaying videos.
To always allow or disallow autoplay for all videos or media with sound:
- Click the menu button
and choose Options. - Select the Privacy & Security panel.
- Scroll down to the Permissions section.
- Go to
Autoplay → Settings. Default for all websites: Block audio is the default setting. Set this to Block Audio and Video to block videos too. Or set this to Allow Audio and Video and you can configure blocking autoplay on a per-site setting, instead.
Youtube.com's site permissions will look like this if set to block video autoplay. You can also opt to set the autoplay permission to allow autoplaying videos for youtube.com only and not other sites.
Firefox versions prior to 69 can use the YouTube High Definition extension (also a Chrome extension) to stop YouTube from auto playing videos, among other features:
answered Jan 12, 2015 at 3:55
Probably late (just by 6 years!), but if you don't want to install an extension, you can use the Firefox configuration editor and change the media.autoplay.enabled value to false
answered Nov 30, 2016 at 18:53
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1Firefox now has a setting:
media.block-autoplay-until-in-foregroundthat does exactly what you need, without the extra hassle that disabling auto-play has.– BarCommented May 8, 2017 at 10:39
Starting with firefox 63, the preference setting to disable autoplay has changed as answered in Firefox support:
in about:config you can set media.autoplay.default
- to 1 in order to block automatic playback on all pages
- to 2 to decide on a per domain basis.
NB: In future release, this feature will be accessible in Options (source)
FlashBlock can do this.
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FlashBlock is not working for me, youtube keeps on playing. Indeed, Firefox is crashing soon after being launched. When I go to "add-ons" I do not see the installed Flashblock and seem to have no way to remove it. How can I remove it? Perhaps I am looking in the wrong place? Commented Sep 8, 2010 at 20:06
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Firefox has a safe-mode which allows you to disable troublesome extensions. How to run it depends in your platform though..– RemyCommented Sep 9, 2010 at 0:13
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@remyhorton - thanks, I guess, but really, this is no help. How about some direction? Regards, Commented Sep 9, 2010 at 0:33
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1
Download Greasemonkey for Firefox.
Download the YouTube Enhancer userscript.
At the top of the window, there is an option where you can set automatic buffering to off or autoplay to off. Same consequence, but with auto buffer, you need to wait for it to buffer (no problem on fast internet anyway).
Also other goodies as well:
- loop
- kill stream
- loop between two set points
- change quality easily
answered Sep 8, 2010 at 15:22
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This looks interesting -+1. I will try this as soon as I am sure I removed Flashblock. Thanks Commented Sep 8, 2010 at 23:20
Firefox now has a setting: media.block-autoplay-until-in-foreground that does exactly what you need. Set it to true through about:config.
This is better than changing the media.autoplay.enabled as it can have an adverse effect on you browsing experience (nothing autoplays)
If you install the NoScript plug-in for Firefox it will block YouTube videos from loading automatically. You can then simply allow the Javascript/JAVA/Flash object every time you wish to view it.
I have tried various about:config settings with no success (using Youtube as a benchmark), but after some seaching I found this article mentioning that the feature is coming, and that it is already present in the nightly build.
The autoplay blocking option works only in the Nightly test version of Firefox for now, but it's scheduled to arrive in the main version of the browser in October
Ironically, that very article started playing super loud and annoying ads in the bottom corner when I opened it.
Firefox Nightly can be downloaded and installed alongside regular Firefox from this page.
I installed Nightly and can confirm that this works both on the above mentioned Cnet article as well as on Youtube. Since Firefox Nightly as a bonus now also allows me to multi-select tabs by Shift-clicking and moving them around (a la Chrome), I'm sold.
Please note that you need to completely exit Firefox before you'll be able to actually launch Nightly. At least for me, in Windows 10.
As of 2022/07/22 in Mozilla Firefox 103.0, none of these solutions were working for me. It seems like websites have found a way to defeat the "block autoplay" setting exposed in the GUI.
The about:config changes in this guide were the only solution that led to consistent blocking of autoplay across domains and various scenarios. The applied setting changes were:
media.autoplay.default = 5
media.autoplay.blocking_policy = 2
media.autoplay.allow-extension-background-pages = false
media.autoplay.block-event.enabled = true
