Do I need to uninstall the previous version of Firefox before installing the new version?

I'm will rise on the installation of new version (3.6.13) old version (3.0.15) not working not o.k. can you advise?

When you install a version of Firefox (current version is the 3.6.15), it will replace the existing version by default.) There is no need to uninstall the old version first.

Tags: Firefox

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