I've searched this forum and the google for a solution but nothing has worked so far.
I've edited my settings.ini to detect portable versions of FireFox, ThunderBird and Opera which seem to work find but Google Chrome is not showing up on the list.
replace M:\GoogleChromePortable\ with the location of your gcp (if you're truly portable, like me, choose the location for the computer that you are most likely to use CCleaner on.
Use this ALONG with custom location (which will inform the "SpecialKey1" lines where to look,and you can clean chrome) also some of those may be extendables (and not in the usual ccleaner, I tried to go through and get them out but may have missed one)
It seems this post has evolved by the time I finally got my account working.
I also had this problem as well, in my case it's also broken for Iron which makes sense since if the custom location is broken. at first I thought it was the path but after having messed around with it for a bit I found it was indeed the custom location that was the problem. I sent in an email describing the problem which has been "passed on to the 2nd Line support team for further investigation" so hopefully they will get around to fixing this soon.
In the mean time thanks Nergal I will add those entries in my personal winapp2
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chrome portable custom location is broken, I had to make GCP entries in my personal winapp2
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.... nine years later here we are!
I am running CCleaner 6.08.1255 64-bit portable setup (no installer) in Windows 10.
About the browsers, there are Internet Explorer, Firefox, Brave as regular installations.
But both Chrome (one) and Opera portable (multiple) installations are present on my PC. Running a 'Custom Clean' with default setup did not detect any Chrome or Opera files.
Opera portable is up-to-date 94.0.4606.38.
So I edited the .ini file with the following:
CustomLocation1=OPERA|C:\Opera 51 Portable - Clean No Addons\profile\data