A proxy server is a server that acts as an intermediary between your system and other servers.
Some malicious surfing app extensions also can create this trouble.
Again, VPN software can be a good culprit behind this error.
Probably this problem because of a wrong connection setting for the web surfing app.
If You have never changed the data pipe setting?
This could be done by adware, malware or any other harmful programs that you have on your system.
So making some changes on Firefox web net web surfer can fix this issue.
Here follow the instruction to fix this proxy server issue.
Click it, then click Options.
On options, You will see many different options.
Here choose Advanced then under Advanced, click online grid.
Now, click options in the connection box.
You will now see proxy parameters.
Click OK. Close your Firefox online window, and open it again.
Mostly It will work.
If you still having the same issue follow next tips.
Disable Proxy for LAN
First Open Control Panel and go to data pipe and Internet.
Click and open Internet Options.
This will open a new Internet Properties dialogue box.
Now Click O the Connections tab and select LAN options at the bottom.
It will also open a new dialogue box.
At the bottom find the Proxy Server section and uncheck the box Use the proxy server for your LAN.
Also, check the box Automatically detect parameters.
hit OK to save the prefs.
This time hope the problem will get fixed.
otherwise, follow the next step.
Note Before making any changes on Windows Registry its recommended to create System Restore point.
This will open Registry editor on your gear.
Delete both these files from registry editor.
Now, reboot your gear.
Once rebooted, open Firefox and connect to the website which was earlier displaying this message.
The firefox proxy server is refusing connections error should be resolved.
Here on setting screen select extensions on left side.
As shown below image.
Just, Disable all extensions.
Now, verify if you’ve got the option to browse without any problem.
If it’s possible for you to do it, Just enable one of your extensions.
Again peek if you’re free to browse any websites without cant connect to the proxy server problem.
By this way, Enable extensions one by one.
You will find the culprit very easily.
Then remove the problematic extension or addon.
Just disconnect from VPN server by clicking disconnect.
To do this open run by pressing Win + R and typencpa.cplthis will initiate the data pipe connections window.
here choose the VPN client right punch it here you will find the disconnect/connection option.
Just disconnect from VPN server by clicking disconnect.
Then, Close and exit it.
But, I would like to suggest you to uninstall it temporarily.
After that, power cycle your PC.
Now, venture to browse any websites by any of the problematic browsers.
Hope, It will fix the problem.
Removing Adware and Malware
Some malicious extensions or malware may create this problem.
So, for that, you might use a good antivirus to remove malware.
first, install a Good antivirus or antimalware with the latest update and perform a full system scan.
Hope after that this problem will get fixed.
Here fallow below instructions to uninstall these adware tools.
Uninstall Wajam Open Control Panel > Programs > Uninstall Program > Programs and Features.
Find any software named as Wajam and uninstall it.
So uninstall it from Control Panel-> Uninstall Program -> Program.
this will reset the chrome setup to default setup.
To Reset the first Open Google Chrome.
choose the Chrome menu (three horizontal bars) and select parameters.
Scroll down and tap on Show advanced options.
Scroll down to the bottom of the page and press Reset controls.
Confirm the decision by clicking on Reset button.
Have any query suggestion feel free to comment below.
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