Installed more than 450,000 people, extensions that inhibit Firefox update

Mozilla said on October 25 (US time) that he found a malicious add -on in June 2021 on Securing the Proxy API for Firefox Add -ons -Mozilla Security Blog.The add -ons have hindered updating downloads, accessing the updated blocklists, and updating the set content.

The problem is realized by abusing the proxy API used by the add -on, and at least 455,000 users have installed such malicious add -ons.

Mozilla explains that it has been dealt with this issue, but if you install the add -on in question, the update will be inhibited and the Mozilla's countermeasures will not be available.If Firefox has not been updated at least to version 93, the appropriate add -on can be deleted in the following ways:

If you follow the above procedure, all installed add -ons and themes will be deleted, and the settings that have been changed will be deleted.If you perform "Firefox Refreshing ...", you need to re -install the add -ons and themes, or start over again.