Windows 7 Firefox connection settings greyed out.

Investigate System-Wide Proxy Settings:​

1. Check System Proxy Configuration:
   • Group Policies or other system-wide configurations might be controlling the proxy settings. Open the Local Group Policy Editor (gpedit.msc) and review settings under Computer Configuration > Administrative Templates > Windows Components > Internet Explorer.
   []Registry Settings for Firefox:
   • Firefox might be looking at system-wide registry settings for proxy configuration. Check the registry settings that handle Windows environment variables, as well as Firefox configurations. Look for any settings that could be applied at a system level.

     Potential Solutions:​

   []Group Policy Adjustments:
   • Ensure that the Group Policy settings related to Internet Explorer do not conflict with Firefox settings. Adjustments in Group Policy might help resolve the issue.
   []Clear Firefox Profiles:
   • Test Firefox in a clean profile to rule out any local Firefox settings causing the issue.
   • Start Firefox in safe mode or create a new profile to confirm if the issue persists.
   []Third-Party Software:
   • Check for any third-party software or security applications that might be managing proxy settings on the system. They could be overriding Firefox settings.
2. Mozilla Support Forums:
   • Mozilla's support forums could provide more insight into specific Firefox proxy issues. Users might have encountered similar problems and found solutions there.

     Further Debugging:​

   • Network Administrator Support:
   • If the issue remains unresolved, involving network administrators or IT support for additional insights could help.

• Proxy Configuration Scripts:
  • Consider automatic proxy configuration scripts (PAC files) that can be specified in Firefox to dynamically set the proxy based on conditions. This method can bypass system-wide restrictions. By analyzing system-wide settings, including Group Policies, registry configurations, and Firefox profiles, you can isolate potential causes of the greyed-out proxy settings in Firefox and take steps to address them effectively.