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problem with latest version of firefox 15.0.1,whenever i download video from youtube or any other site using idm it shows .webm format instead of flv or mp4.

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problem with latest version of firefox 15.0.1,whenever i download video from youtube or any other site using idm it shows only .webm format to download instead of flv or mp4.previous version works fine.also other browsers work fine.

problem with latest version of firefox 15.0.1,whenever i download video from youtube or any other site using idm it shows only .webm format to download instead of flv or mp4.previous version works fine.also other browsers work fine.

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Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

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