(Configured via Preferences / Miscellaneous / Shell Extensions.)
Categorised, searchable list of all shell extensions installed on your machine.
Shell extensions can be blocked via UI. Replaces old Advanced settings (ignore_context_menus/allow_context_menus).
All extension types can now be blocked, not just context menus.
Lets you see any installed extensions which are blocked by default, allowing you to unblock them.
Lets you see any extensions which were automatically blocked due to a previous crash.
Similar to NirSoft's ShellExView tool, but built-in and only affects Opus. ShellExView, AutoRuns, or similar should still be used for system-wide blocks.
Menu (top-right "hamburger" icon) has several options for tech support:
Block a specific shell extension by ID, without having to find it in the list.
Save a file listing all shell extensions on the machine.
Import or export a list of blocked shell extensions. (Doesn't include ones blocked by default.)
Option to run context menu extensions in a separate process (when possible). Helps isolate Opus from bugs in unstable third-party code.
Option to hide Windows and third-party menu items has moved here.