Vulnerabilities

Memory safety bugs present in Firefox 118.

Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3.

A malicious web site can enter fullscreen mode while simultaneously triggering a WebAuthn prompt.

During garbage collection extra operations were performed on a object that should not be.

The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer.

A website could have obscured the full screen notification by using the file open dialog.

A malicious installed WebExtension could open arbitrary URLs, which under the right circumstance could be leveraged to collect sensitive user data.

Drivers are not always robust to extremely large draw calls and in some cases this scenario could have led to a crash.

An attacker with temporary script access to a site could have set a cookie containing invalid characters using `document.cookie` that could have led to unknown errors.

Using iterative requests an attacker was able to learn the size of an opaque response, as well as the contents of a server-supplied Vary header.

It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an insufficient activation-delay.