In almost every single case of Error 6 (net::ERR_FILE_NOT_FOUND) to date, a Chrome extension has been to blame. Since that is the case, simply getting rid of the extension that is causing users to be faced with Error 6 (net::ERR_FILE_NOT_FOUND) whenever they try to open any or a specific web page should fix the issue. The following are the two most effective known solutions to Error 6 (net::ERR_FILE_NOT_FOUND):

Solution 1: Get Rid of the Default Tab Extension

In the case of many people previously affected by Error 6, a Google Chrome extension titled ‘Default Tab’ was often the culprit. This extension had somehow installed itself on their computers, leading to Error 6. The Default Tab extension is not merely a Chrome extension but also a standalone program, which explains why it continues to return no matter how often you remove it from the list of extensions in Google Chrome. Fortunately, it is possible to eliminate the Default Tab extension and, consequently, fix Error 6. To do so, you need to:

Solution 2: Identify the extension causing the problem and remove it.

FIX  Steps to Fix Error ERR FILE NOT FOUND - 78FIX  Steps to Fix Error ERR FILE NOT FOUND - 8FIX  Steps to Fix Error ERR FILE NOT FOUND - 63FIX  Steps to Fix Error ERR FILE NOT FOUND - 3FIX  Steps to Fix Error ERR FILE NOT FOUND - 99FIX  Steps to Fix Error ERR FILE NOT FOUND - 87