Hummm yes 9yrs... I have no issues getting to Cricket so..... All sorts of issues going on I am sure. Suggest running Microsoft Disk Cleanup then run it again and click the button Clean Up System Files. A good defrag might be helpful after all this.

Suggest : Repair System Registry and Files

(FOR DOING Above & Below - WINDOWS All OTHER VERSIONS - Use Search To Find Command Prompt ** Enter CMD.exe to Find COMMAND PROMPT Then Right Click & RUN AS ADMIN)

To run the SFC command use the Windows key + X keyboard shortcut to open the Power User menu and select Command Prompt (Admin). Type "SFC /SCANNOW" (without quotes or copy/paste) and press Enter. For more information on using SFC, please refer to the Microsoft KB: Use the System File Checker tool to repair missing or corrupted system files

Run the Windows Deployment Image Servicing and Management (DISM) and System File Checker (SFC) tools as Administrator. The DISM and SFC tools scan the integrity of the Windows image and all protected system files replaces corrupted, damaged and incorrect versions. (FOR DOING Above & Below - WINDOWS All OTHER VERSIONS - Use Search To Find Command Prompt ** Enter CMD.exe to Find COMMAND PROMPT Then Right Click & RUN AS ADMIN)

Windows 10 To run the DISM command use the Windows key + X keyboard shortcut to open the Power User menu, then select Command Prompt (Admin). Type "DISM /Online /Cleanup-Image /RestoreHealth" (without quotes or copy/paste) and press Enter. While running DISM you may notice the process will appear to pause at 20%. After a few minutes the operation will continue.

I also suggest updating any and all drivers that you can possible figure out or download a free Driver Update Program so get new best as possible updates for the Network Card.

At this time I think that might be the best way to go and see if Firefox runs any better afterwards and your connection out is working better. Also try a new or other cable if can plugin any where and see if that makes a differance to the issues you are having. This sounds more like system/cpu issues so please try the above before doing a Firefox Refresh which is the last resort. https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings

Please let us know if this solved your issue or if need further assistance.

"This is embarrassing" would suggest that Firefox is crashing.

If you have submitted crash reports then please post the IDs of one or more recent crash reports that start with "bp-".

• bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

You can find the report ID of recent crash reports "on the "Help -> Troubleshooting Information" (about:support) page".

• click the "All Crash Reports" button on this page to open the about:crashes page and see all crash reports.

Alternatively you can open about:crashes via the location/address bar.

See also:

• http://kb.mozillazine.org/Mozilla_Crash_Reporter
• https://support.mozilla.org/en-US/kb/Mozilla+Crash+Reporter