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Firefox is giving me a JavaScript error when I click on a video. Help?

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Themayor787
Themayor787
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OK, so I am using FireFox 5.0. And every time I click a Youtube video, I get this error message:

[Javascript Application] error.BVDCORE.videoFormats is undefined


Can anyone tell me how to fix it? The video works fine, it's just extremely annoying to have to close it every time I click a video. Is there a way I can fix it easily or disable JUST THAT error message? And, if possible, telling me why it is saying this? It's never happened before. I've googled this error, and got literally 0 results. Help? This ONLY happens on FireFox. I checked yIE and it didn't come up with that.

OK, so I am using FireFox 5.0. And every time I click a Youtube video, I get this error message: [Javascript Application] error.BVDCORE.videoFormats is undefined Can anyone tell me how to fix it? The video works fine, it's just extremely annoying to have to close it every time I click a video. Is there a way I can fix it easily or disable JUST THAT error message? And, if possible, telling me why it is saying this? It's never happened before. I've googled this error, and got literally 0 results. Help? This ONLY happens on FireFox. I checked y'''IE and it didn't come up with that.'''

All Replies (3)

hiroueno808
hiroueno808
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You are getting this error because of Youtube Video Downloader. Go to Tools>Add-On's. Now click disable next to Youtube Video Downloader Now Reset Firefox and it should work fine.

Modified by hiroueno808

Hasan
Hasan
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kingp1ng: I had both Easy Youtube Video Downloader and NewTabKing. Both stopped working. Uninstalled both. Problem fixed.

ice792: Try Video DownloadHelper 4.9.3 Really easy to use, you´ll get used to it quickly.

Taken from: https://support.mozilla.com/en-US/questions/856001

Check and tell if its working.

Modified by Hasan

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"

"Remove Cookies" from sites causing problems:

  • Tools > Options > Privacy > Cookies: "Show Cookies"

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).