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FireFox 18 does not work with youtube, web video

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  • 31 have this problem
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  • Last reply by FrancF

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Youtube, Flash Videos do not work in Ver. 18.0.0 I have run FireFox with all add-on disabled installed new drivers for Flash player etc. The wife's laptop also has crashed with the new update as well .

Any suggestions? or is it a known/typical bug?

Youtube, Flash Videos do not work in Ver. 18.0.0 I have run FireFox with all add-on disabled installed new drivers for Flash player etc. The wife's laptop also has crashed with the new update as well . Any suggestions? or is it a known/typical bug?

All Replies (3)

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Hello FrancF,

Thank you for posting on Mozilla Support. We value and appreciate you as a user.

Please do a malware check on both computers.

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try some of the following programs to scan for malware:


Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!


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Opt-out of HTML5 video on YouTube.

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Scanned for Mal ware- 0 found, Scanned for virus's -0 found. Once I reinstalled FF 18 all was good, The second you shut it down It reverts to the same problem.