Not too sure if one can "lunch" the browser via the homebrew menu or rather in this case, HANS.
In the normal home menu, you're able to go to things like the browser and friend list via the top (fixed) dock but you would be unable to have the 3DS to keep it running in the background (it would go right to the home menu instead of zooming out from the application and have it still running [but paused]).
If those are only accessible by going into a different firmware mode then HANS is currently unable to do that sort of thing with the control it has.
What has to be remembered here is that they aren't some ordinary 3DS applications that you could just pick outside the home menu (or more specifically the centre tweakable dock).
It would be great for someone to put out their thoughts on this. After all, this is just based off of some assumptions and the tests I had performed on HANS.
well no but you can change the lango with it by seding it to regen jap and lango jap in the systum seding with hands and then it crashes then pres down L R B and go to internet bowser normly and thare ya go
Homebrew can only really launch actual apps. System apps, games, stuff like that.
The things at the top of your home menu, however (Game Notes, Friends list, Notifications, Web Browser and MiiVerse), are Applets, which behave differently to normal apps. They run on the home menu alongside any app you may be running.
Homebrew gives us userland access, which is, anything a regular game or app can access. That is because it runs as a game. Games can't launch applets on their own, you have to launch them from the home menu, so we can't run them from HBL.
In fact a few of these applets show up on N3DS in HBL when trying to use region free launcher (or at least they show up in title launcher on masher's launcher), but attempting to select them to run them only blackscreens.