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keep ghetting message: the signature of Firefox Setup 28.0 is corrupt or invalid after it has downloaded 99%

  • 2 replies
  • 3 have this problem
  • 2 views
  • Last reply by cor-el

StephenW
StephenW
more options

I have tried to download and install firefox several times. I have used different links to get to the download. Each time it downloads to 99% and then stops. When I click 'resume' I get the message: The signature of Firefox Setup 28.0 exe is corrupt or invalid.

I have tried to download and install firefox several times. I have used different links to get to the download. Each time it downloads to 99% and then stops. When I click 'resume' I get the message: The signature of Firefox Setup 28.0 exe is corrupt or invalid.

Chosen solution

This usually happens if your security software is blocking the download.

It is possible that anti-virus software is corrupting downloaded files or is interfering otherwise.

Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.

See:

Download and save the full Firefox installer to the desktop and start the installation with a double-click on the desktop icon.

You can find the full version of the current Firefox 28.0 release in all languages and for all Operating Systems here:

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All Replies (2)

christ1
christ1
  • Top 25 Contributor
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There is only one site you should download FF from:

http://www.mozilla.org

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Chosen Solution

This usually happens if your security software is blocking the download.

It is possible that anti-virus software is corrupting downloaded files or is interfering otherwise.

Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.

See:

Download and save the full Firefox installer to the desktop and start the installation with a double-click on the desktop icon.

You can find the full version of the current Firefox 28.0 release in all languages and for all Operating Systems here: