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Im unable to upgrade to firefox 26, i recieve patch error

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When trying to upgrade firefox from version 23 to 26, the upgrade file downloads and starts to run and then i get an error about Error in the patch.

When trying to upgrade firefox from version 23 to 26, the upgrade file downloads and starts to run and then i get an error about Error in the patch.

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That happens sometimes when users skip updates. You can get the full Firefox 26 installation package here.
http://www.mozilla.com/en-US/firefox/all.html