Note that Firefox 36 has been released (possibly throttled until Friday), so you can install the Firefox 36 en-US version.

You can find the full version of the current Firefox 36.0 release in all languages and for all operating systems here:

• https://www.mozilla.org/en-US/firefox/all/

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

• http://kb.mozillazine.org/Profile_backup

You can try use the Simple Locale Switcher add-on.

JRKuehn26 said

I really don't want to delete my mozilla web browser because I really managed all my tabs and I dont want to change or lose them. however I downloaded mozilla when i lived in Germany and I am now having a hard time trying to switch it over to the US version so I don't always need the english language pack "add on". Is there anyway I can do this without deleting everything to then redo it all?

I tried downloading the new version from that page however it failed before it would finish both times I tried.

You can try to download the latest release directly from the CDN server.

• http://download.cdn.mozilla.net/pub/mozilla.org/firefox/releases/latest/win32/

Make sure that your security software isn't blocking this file.