Key to temporarily override right click menu replacement on websites.

On some websites, the standard context menu gets disabled/replaced with a website specific context menu. 

Usually, this is fine, but on some rare occasions, I do need access to the standard context menu on such pages. While it's possible in Firefox to go to the settings and disable the "disabling" of the right click context menu, Chromium supposedly needs an extension. 

However, I don't want to globally disable the right click menu. Only in rare specific cases. 

So if possible, add a keyboard modifier (like "CTRL + RightClick") that allows me to temporarily override the webiste's right click menu script, and still show the standard browser context menu.