How to disable the long right click icon menu?

[zapta]

trafficstars

When I long click on the right mouse I get a popup with icons of the search engines I defined (very good).

Is it possible to disable on sites such as https://cad.onshape.com/ such that it will not interfere with the right click drag operation used by the site?

[ssborbis]

There's a blocklist in the CS options under General where you can add URLs You can also enable the blocklist tool, so you can click the icon, and the quick menu shouldn't appear on that site.