where is the userdata stored and where do i copy it to in the portable version

p

when you click on the plus sign on a tab how do you get it to open on google NOT Supermium page

 

Edited November 4, 2025Nov 4 by DrWho3000

its probaly a known path - it can differ - you also can set some of these 

best would be to search your disc for a known and relativ unique file filename

xp useally has it like at Documents and Settings\ (user like administrator or all users) there then should be something called userdata

On Windows 10 I think the profile should be at C:\Users\<username>\AppData\Roaming\Supermium\User Data.

Is there an equivalent of the "Open With" extension in Firefox, which allows to pass an URL to programs from a menu?

I don't think that any Chromium-based browsers have an equivalent to that function.
However, if the browser can't open something natively, I would expect it to open in the program associated with it by Windows, if any.

There are Chromium extensions to send URLs to Edge and Firefox, among many other things (VLC Player, PDF Viewer, Google Docs, etc).

So "yes and no"...  You can send URLs, but maybe not thru "Open With".

There are also Chromium extensions to open "local files".

So in short, you kind of need to tell us just what you are trying to open, instead of vague generality of "Open With".

Give an exa,mple of a good extension I can install in Supermium. I want to download YouTube with YouTube-DLP. It is very sluggish with New Moon that I use normally. The Open With preset has to be able to save various command-line parameters.

these executables (processes) useally just use the parameters given to them

having a compling code that means you could write the createprocess() function with a parameter

that then can be readed out by the next process (in this case ytdl) 

the parameter might just be a string to that file like C:\info.ini

the program(ytdl) then reads out this from the parameter

I am not an extension programmer. Hoping something already exists that is meant for Supermium and works in as similar way. The  program I want to call is not that relevant. I also want a media player on the menu for the occasional direct link stream.

Supermium is fundamentally a standard Chromium-based browser, so any extension from the Chrome Web Store should work with it.
Even old Manifest V2 extensions will still work with it.

 

1 hour ago, j7n said:

The  program I want to call is not that relevant

YES IT IS, if you really want us to seek out a solution.

 

1 hour ago, j7n said:

I also want a media player on the menu

There are a *TON* of Chrome extensions taylored to VLC Player.

ONE example --  https://chromewebstore.google.com/detail/open-in-vlc-media-player/kbonopecbfhedlfpaphndlaoppmdppim?hl=en

Then browse the "related" and then browse the related's "related".  *TONS* of them.  Though I myself have not used any of them to speak towards any recommendation.

 

Oh they have an extension for each individual program. With this philosophy you would soon drown in browser plugins. Open With in New Moon allows you to enter the name of any program you want in the same extension.

54 minutes ago, j7n said:

allows you to enter the name of any program you want in the same extension

You can do that in Chromium-based extensions also.

That is why I keep asking for details on just WHAT you want to do.

I ran an extension in 360Chrome (based on Chrome v86) that had an extension to open .pdf files via whatever was associated at the OS level for .pdf files (Adobe Acrobat v9.5.5 is what I was using at the time).

I modified that ONE extension to not only open .pdf files, but send .txt files to Notepad++, .xls files to Excel 2000, .xlsx files to Excel 2007, and .bin files to a program for modifying aftermarket turbos.

So what you want *CAN* be done.  You just keep dancing around giving us the DETAILS to adequately assist.

If you cannot reveal the PROGRAM that you are wanting to send something to, then I'm afraid I cannot even START in seeking a possible solution.

Doesn't mean I *have* a solution, but you really aren't even letting me know WHERE TO START.

ie, it is *VERY* likely that one of those "Open in VLC Player" extensions CAN BE MODIFED to INCLUDE different programs.

I've done it in the past!  Granted, Chrome is much more "secure" than it was with v86, but I'm still confident that if an extension can send a media file to VLC Player, then IT CAN ALSO send other files to other programs.

All via *ONE* extension.