You can Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

• https://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/
• https://www.digitalcitizen.life/4-ways-boot-safe-mode-windows-10/

Can you show examples of the issue? Here is the add-on I use to see load times. https://addons.mozilla.org/en-US/firefox/addon/load-time/ WiFi or LAN? What OS? What version of Firefox? What security software are you running?

WiFi or LAN? Both What OS? Win 22H2 (OS Build 19045.4046) What version of Firefox? 123.0 (64-bit What security software are you running? McAfee DLP and Crowdstrike. We have uninstalled the agents yet the issue continues. In the attached picture I did a web search to irs.gov. Other sites take longer. Yet if I use chrome or edge I am not seeing the same issue

Crowdstrike... is this work or personal computer?

Window home or pro? If you're running Windows Pro version, I would test in the Sandbox to confirm. https://www.howtogeek.com/399290/how-to-use-windows-10s-new-sandbox-to-safely-test-apps/

Work Computer.