do shell script “/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome –incognito &> /dev/null &”

do shell script “/Applications/Chromium.app/Contents/MacOS/Chromium –incognito &> /dev/null &”

for Chromium
And

do shell script “/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome –incognito”

For Google.
A tad simpler

Unfortunately, in Chromium you it looks like Extensions don’t function when using incognito mode, not sure if that is intended but it makes this useless.

As an alternative, do you have a script to clear browsing history on exit?

I created a new post that explains how to make an application from the script.
Check it out how to create an application that start google chrome in incognito mode/
Good Luck

The method described for MAC users doesn’t Hack Google Chrome Browser.
If you look at the code, it’s basically start Google Chrome, opens Incognito Window for you and close the Regular Chrome window.
You should create a shortcut for the script or Save the script as Application.

Let Me know if you need additional assistant.

Another question is, the last step compile and save, where we need to save that file? does that make any difference?

Google Chrome is an excellent browser. I use it over Firefox because its lightweight and fast. It also has some excellent out-of-the-box features, like Incognito mode, which can be mimicked in Firefox with a little messing around with features.
As a in…