Try clearing the FFox data cache (Options > Advanced > Network > Cached Web Content), then close and restart Firefox.
If this fails, try creating a new FFox Profile and see if that will load TE.
Try clearing the FFox data cache (Options > Advanced > Network > Cached Web Content), then close and restart Firefox.
If this fails, try creating a new FFox Profile and see if that will load TE.
Any formation or tactics advice given is based purely on experience with my teams...