I recently had my machine refreshed and ported over an existing profile that worked flawlessly. Now, every time I launch Firefox, it freezes up for 10-15 minutes, and again anytime I click a link or refresh the page. I've googled extensively to solve the issue, booted in safe mode where the issue still exists and tried creating a new profile, for which the issue persists. The issue started on FF 13.0 and I reverted to 12.0 (what I had before the refresh and previously worked fine), but the issues persists for both. Any other ideas on how to fix this?