How to Fix HTTP Error 409 on Chrome, Edge, Firefox

Some users experienced HTTP Error 409 when trying to access a website or update Ubuntu but were not able to do so. The error generally appears on the Chrome browser, but if you encounter it on any other browser, such as Edge or Firefox, this guide will help you fix it. There are some potential solutions in this article that you users can try to resolve this error, but you will need to be a website administrator to access them.

What Causes the HTTP Error 409?

There are several possible causes for HTTP code 409, such as browser difficulties or malicious software. A browser issue can range from being outdated to being corrupted. Sometimes, server-side problems or client-side problems can also lead to this error. Here are some other possible causes:

Error 409 may occur when the cookies, site data, or cache of your browser are corrupted.
When the browser is configured differently than the default, a conflicting request may be issued, which causes the error 409.
If your device’s browser is outdated, you may also receive this HTTP error 409.
A security product on the device may interfere with the server/client communication and result in HTTP error 409.

How to Fix HTTP Error 409 on Browsers

For illustration purposes, we will talk about the Chrome browser and explain how everything works. If you are experiencing this error in Microsoft Edge or Firefox, follow the same procedure. To fix HTTP Error 409 on your browser, use the below steps:

1] Restart the device and network equipment

HTTP error 409 may occur due to a communication breakdown since conflicting requests may be sent from the client. In this case, restarting the device and network equipment might resolve the HTTP error.

Turn off your device as well as the networking equipment such as your router.
After that, pull out the power cords of the devices. If there is a battery in the device, remove it.
Let the devices rest for 5 minutes and then plug them back in. Reinstall the battery on devices with batteries.
Next, turn the router on and wait until it is fully functional.
You can now turn on your computer, and once it’s running properly, check if you can access the problematic website.

2] Clear the cache and cookies in your browser

An HTTP 409 error might occur due to corrupted cookies or cache in the browser, which can create communication problems with the website’s server. In such a case, you should need to clear the cache and cookie in your browser and then see if it solves the error code. Before you proceed, it is recommended to back up any vital information or data in your browser.

Launch Google Chrome.
Click on the three vertical dots and select Settings.
Select the Privacy & security tab from the left pane.
Click Clear browsing data in the Privacy & security menu.
On the next page, switch to the Advanced tab.
Then, set the Time Range to All time and check all the boxes.
Click on Clear data.

Once you have followed the above instructions, try to open the problematic website and check if it solves the error code.

Note: You can open Clear browsing data directly by pressing Ctrl + Shift + Delete on your keyboard.

3] Update Your Browser to the Latest Version

Some websites may not be compatible with outdated browsers since they can’t comply with the latest HTTP standards. A similar situation can arise if your browser is outdated. You may be able to resolve the issue by updating your browser to the latest version. Here is an example of how to update Chrome.

Open the Chrome browser.
Go to the top right corner of the screen and click the vertical ellipses.

Click on Help and choose About Google Chrome.
You should then click on Relaunch after you have updated Chrome to the latest build.
Now check if you can open the problematic websites without getting the 409 error.

4] Disable all Chrome extensions

The chances of getting this error are high if you are unable to set things up correctly after installing security extensions on your browser. The firewall extension on some browsers may prevent you from visiting certain websites or performing specific actions. In case you are using such an extension, you may encounter this error code on any website you visit.

To resolve the issue, disable all the extensions (chrome://extensions) at the same time and see if that helps or not. If it does, enable each extension separately to identify the problematic extension.

5] Reset your browser to its factory defaults

The browser could encounter the HTTP error 409 if one or more customizations to its default settings interrupt or prevent communication with a website. In such a case, a reset to the factory defaults of the browser may resolve the issue.