Can you open Aurora in Safe Mode?

You can use one of these to start Firefox in Safe Mode:

• On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
• On Mac, hold down the Options key while starting Firefox
• Help > Restart with Add-ons Disabled

• https://support.mozilla.org/kb/Safe+Mode

Create a new profile as a test to check if your current profile is causing the problems.

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

See "Creating a profile":

• https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

If the new profile works then you can transfer some files from an existing profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem.

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

i have three profiles and every single one it will not open. and the safemode aurora still wont open. im not trying to uninstall aurora because i want to see the history for a website.

Aurora is also available as a ZIP archive, so you can try to extract the content to a separate program folder and see if you can launch the Profile Manager or start Aurora otherwise.

firefox-28.0a2.en-US.win32.zip:

• http://download.cdn.mozilla.net/pub/mozilla.org/firefox/nightly/latest-mozilla-aurora/

firefox-28.0a2.en-US.win32.test.zip ?

No.

• http://download.cdn.mozilla.net/pub/mozilla.org/firefox/nightly/latest-mozilla-aurora/firefox-28.0a2.en-US.win32.zip

If that version is causing problems then revert for now to yesterday's build or an older version that works.

• http://download.cdn.mozilla.net/pub/mozilla.org/firefox/nightly/