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Firefox 25 wont update, nor install fresh.

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Firefox downloads the update, "Installs", and after that it says that I need to restart the firefox. I restart firefox, but it says that the partial update was not applied, and will download the complete file in order to update. After that, it restarts, and says there were problems to perform the update.

When I try to perform a fresh install it says extracting and then the program disappears and does nothing.

Please help.

Firefox downloads the update, "Installs", and after that it says that I need to restart the firefox. I restart firefox, but it says that the partial update was not applied, and will download the complete file in order to update. After that, it restarts, and says there were problems to perform the update. When I try to perform a fresh install it says extracting and then the program disappears and does nothing. Please help.

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I tried installing as administrator and it all went well. Sorry for the inconvenience.

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I tried installing as administrator and it all went well. Sorry for the inconvenience.