Earlier, the Firefox browser extension was completely banned due to the expiration of the certificate. This incident affected Firefox users in all countries and regions around the world. Although Firefox launched the solution at the time, it only required users to participate in data sharing, which means that some of the user data will be collected by Firefox. By default, Firefox will not enable data sharing in the stable version. This special case is mainly due to the expiration of the certificate and the expansion of the program.
Firefox apologized for this issue:
We’re working hard to bring a better experience to the Firefox browser, but we apologize for the problems that affected Firefox browsers last week. In the past few years, we have spent a lot of time thinking about how to make extensions more secure, because the permissions and functionality of the extensions are very powerful. In view of this, we must build and deploy the system to prevent users from being maliciously extended, and this problem is really caused by the system we use.
At the time, there was a deployment error in the protection system that caused the insurance mode to be turned on. In the insurance mode, all extensions will be disabled by default. Although we believe that this mechanism is designed to be reasonable, we will continue to work hard to make improvements to ensure that similar disabling issues do not occur in the future.
The collected telemetry data will also be deleted:
Mozilla wrote, “In order to respect our users’ potential intentions as much as possible, based on our current set up, we will be deleting all of our source Telemetry and Studies data for our entire user population collected between 2019-05-04T11:00:00Z and 2019-05-11T11:00:00Z.”
Firefox browser stable version does not collect telemetry data by default, but in order to fix the above problem, Firefox called on users to open telemetry data to solve the problem. Now that the problem has been fixed, Firefox will directly remove the telemetry data for those who do not voluntarily share the data.