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Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

When I attempt to open a pdf it does not open and then it opens a new tab over and over again, how do I stop this?

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When clicking on a pdf file it does not open and then it opens hundreds of tabs. The only way to stop it is to shut off the computer.

When clicking on a pdf file it does not open and then it opens hundreds of tabs. The only way to stop it is to shut off the computer.

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You probably have an incorrect action type set for pdf files, it will be set to "use Firefox" rather than using a pdf application such as Adobe Reader. For details of how to fix this see the "Change the action for a content type" section of https://support.mozilla.com/kb/Firefox+keeps+opening+many+tabs+or+windows