About ://flags page, formerly known as about:labs page in Chrome, these flags are experimental features under development being aimed at developers and advanced users, and not for regular users. That’s why, they are disabled by default, interested users can test them by turning one or more, Chrome browser needs to be restarted for the changes to take effect.
Chrome://flags or about:flags page warns user “these experimental features may change, break, or disappear at any time”. And the implications of enabling one or more experimental features could lead to browser data loss or compromises your security or privacy.
READ: Google redesigns the chrome://flags page
How to Reset all Chrome flags to default
So if you’ve enabled few experimental features, you need to disable them after testing. But, you need to carefully look for each and every flag, after all, there are more than 133 flags to go through. So finding each enabled flag and disabling can be a tedious task and takes some time, keeping this in mind, the Chrome team has added “Reset all to default button” on top of the Chrome flags page, which you can use.
So to reset all Chrome flags to default
1. Visit about:flags in Chrome
2. Click on “Reset all to default” button and scroll down to bottom, and click on “Relaunch Now” button for the changes to take effect.
Similarly, you can reset all Opera (Chromium-based) flags to defaults as well.