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Trouble updating from Firefox 3.0.12 to Firefox 3.6

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I am having trouble upgrading my Firefox application from 3.0.12 to 3.6. I have downloaded 3.6 and when I drag the icon into my applications folder it asks if I would like to replace the current version. I click replace and then a message comes up saying I have insufficient privileges so it cannot be replaced.

I don't know how I could have insufficient privileges as I am the admin on my computer and the only one who uses it.

How do I gain sufficient privileges or how can I get around this problem?

I am having trouble upgrading my Firefox application from 3.0.12 to 3.6. I have downloaded 3.6 and when I drag the icon into my applications folder it asks if I would like to replace the current version. I click replace and then a message comes up saying I have insufficient privileges so it cannot be replaced. I don't know how I could have insufficient privileges as I am the admin on my computer and the only one who uses it. How do I gain sufficient privileges or how can I get around this problem?

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Thanks James for your reply, but I am installing it according to those directions, but it is still saying "The operation cannot be completed because you do not have sufficient privileges for some of the items" so I can't even get past the point of dragging the icon onto my hardrive.

I am getting very frustrated as many of the websites I use on a daily basis for my work are now not working properly as I need to upgrade Firefox.

Someone please help!

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Well I have the answer! You click on the current version of Firefox you have in your Applications folder and send it to trash. Don't worry all your settings and bookmarks are saved elsewhere on your computer and will not be deleted. I know this for sure as I tried it. Then download the latest version of Firefox and install as directed. It works - no settings or book marks were lost and the version is updated!

I'm so relieved!