![]() ![]() This bug only affects Firefox on Windows. #CVE-2023-5168: Out-of-bounds write in FilterNodeD2D1 Reporter sonakkbi Impact high DescriptionĪ compromised content process could have provided malicious data to FilterNodeD2D1 resulting in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process. In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts. Paste the following into the userChrome.Mozilla Foundation Security Advisory 2023-43 Security Vulnerabilities fixed in Thunderbird 115.3 Announced SeptemImpact high Products Thunderbird Fixed in.Create the userChrome.css file (if it doesn't exist), e.g.Create the chrome directory (if it doesn't exist), e.g.Go to your Thunderbird profile directory, e.g.In "Search preference name", enter " ".Tools -> Settings ->Search "config" -> Select " Config Editor." Note that the older way of using "display: none" does not work.Įnable Legacy User Profile Customizations Hiding the Unified Toolbar: You can hide the Unified Toolbar using 'userChrome.css' and setting unifiedToolbar visibilty to collapse. The feature could be similar to the Spaces Toolbar and perhaps pressing Ctrl + K (to bring up the search) could toggle it too. Maybe in a future Thunderbird release we could have an option to hide and unhide the Unified Toolbar. The fix sets the minimum height of the Unified Toolbar when empty. The issue of the Unified Toolbar taking up ~3 lines could be caused by the fix for the bug: ![]() However, the Unified Toolbar has the option to disable the Menu Bar instead of itself. ![]() Right clicking on toolbars usually has an option to disable the toolbar. ![]()
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