It appears to be you're internet, firefox was having some issues earlier in the day, but we have fixed the issues.

What do you mean by "roaming"?

If Firefox has episodic periods of not responding, or is laggy with text entry, that could indicate it is waiting for something else in the background or busy doing something it shouldn't be doing.

In case one of your extensions is involved, could you test in Firefox's Safe Mode? That's a standard diagnostic tool to deactivate extensions and some advanced features of Firefox. More info: Diagnose Firefox issues using Troubleshoot Mode.

You can restart Firefox in Safe Mode using either:

• "3-bar" menu button > "?" button > Restart with Add-ons Disabled
• Help menu > Restart with Add-ons Disabled

Not all add-ons are disabled: Flash and other plugins still run

After Firefox shuts down, a small dialog should appear. Click "Start in Safe Mode" (not Reset).

Any difference?