1,147 reviews for this add-on
  • FF 52 ESR, Windows 10. Blocks Flash content but cannot unblock videos...

  • No more updates so doesn't work as it was used to be, use it if you have earlier version of firefox.

  • Firefox 59.0b7 x64, Windows 10 - "This add-on is not compatible with your version of Firefox".

  • Please sharpen under the new Mozillians❣

  • nice one

  • Best way to disable flash with some whitelisted exceptions

  • After a bit of digging around as to why Firefox was gobbling memory and disk space, tried everything then eventually disabled addons, adding them one at a time and Viola, Flashblock starts getting machine into a memory resource use loop gobbling into memory (I have 8 g RAM) and then disk space, slowing down computer (fast desktop).
    Anyway we are now moving away from flash so need for this is diminishing.
    Not a good addon.

  • No more update - stop working.

  • Installed, enabled, Firefox restarted. Does not block videos.

  • I think this is an abandoned add-on because it hasn't been updated for a long time.

    At least, it was the best when it worked.

  • this does not work. it blocks the video of html but the html audio still plays, yet no flash. can someone tell me of an app that actually works for this purpose?

  • Worked well in the past but, as others have said, the possibility to unblock a certain video when Flashblock is enabled doesn't work anymore (at least under Windows 10). Too bad the author doesn't seem to care enough to fix it.

  • I could not make Flash work anymore. It appears Windows 10 Pro has an update that stops flashblock being able to tun off when I approve viewing the Flash item.

    I have used Flashblock for years, but no longer it is now broken.

  • Ce module fonctionne parfaitement.

  • Have been using this add-on for quite sometime, but noticed that even after I white-list some websites to play flash content, it still shows the 'play' button which can't be clicked to play flash. Have to disable this add-on to play flash content even on whitelisted sites, which needs to be fixed.

  • It does block flash animation and videos. But there is no option to play them. In Youtube, for example, the "play button" when pressed will only play sound, no video.

  • This add on is getting worse or the flash ads are getting way better? I stopped using this ad on a few years ago due to it's constant failure and now it does not even do what it is allegedy supposed to do. In addition most pages ie youtube don't even load video correctly after installing it even after whitelisting the web page! I would give you negative stars but alas I can't but I wish I could

  • Very useful and still replaceable, but will this update to support multiprocess?

  • very helpful !

  • fatigué d'avoir des pages web afficher automatiquement du contenu flash? cette extension vous donnera satisfaction et évite d'utiliser inutilement des ressources du pc

  • I'll give it two stars because it does appear to block the flash and that's what it's supposed to do. However, there is no "button" option to play the flash videos on demand. Nothing plays any longer. I don't want to whitelist an entire site because I didn't 't want all of the videos to play, only the select ones I want. So it defeats the purpose.

  • In page http://www.mozdev.org/mailman/listinfo/flashblock I saw «No such list flashblock», so I write my bugreport to address — https://github.com/Kristinita/SashaMiscellaneous/issues/5 . Please, to see it, when you will have a free time.

    Thanks for Flashblock!

  • This was once one of my favorite extensions. But it doesn't work anymore. This extension doesn't get any updates anymore. Don't install it.

  • sorry to see Flashblock go, served me well for years but time to move on..I'd switch back out of LOYALTY if this was ever updated but time to move on..Flashstopper by yochaim now does what, sadly, this add-on used to...thanks for a good long run though Phillip!

  • No longer works on Youtube. Even though it prevents the video from showing, it's still running - and gobbling up data.