New profile tab recognized as popup in Brave

[Vanerio]

Prerequisites

• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
• The issue is not present after wholly disabling uBlock Origin ("uBO") in the browser
• I checked the documentation to understand that the issue I report is not a normal behavior

I tried to reproduce the issue when...

• uBO is the only extension
• using a new, unmodified browser profile

Description

When a new profile is created in Brave, and "no-popups: * true" is set in "My rules", you can not load any URL in main tab as profile window closes after opennin that especific profile form another profile.

A specific URL where the issue occurs

https://www.google.com/search?q=everywhere

Steps to Reproduce

1. Create a "default profile" or use a a profile you alredy have (PROFILE A).
2. Create a second profile (PROFILE B).
3. Go to "PROFILE B/Settings/Get started/On Startup" and set it to "Open the New Tab Page".
4. Go to "PROFILE B/Settings/New Tab Page/New tab page shows" and set it to "Blank page".
5. Install uBlock Origin in PROFILE B and add "no-popups: * true" to "My rules" (make sure to press "Commit" button after that).
6. Close every Brave instance.
7. Open PROFILE A in Brave.
8. Open PROFILE B from PROFILE A.
9. Type an URL (e.g.: google.com) or anything else in the address bar and press Enter. You can also click any Bookmark to reproduce this.
10. PROFILE B window closes as it is detected as a popup.

Note 1: Tested in 2 PC´s, one of them under a clean Brave installation.
Note 2: This used to happen in Chrome too, but I think it does not happen anymore. I am not fully sure though.

Expected behavior

Brave loads the URL/Bookmark in PROFILE B as expected.

Actual behavior

Brave´s PROFILE B window closes.

Configuration

uBlock Origin: 1.43.0
Chromium: 104
filterset (summary): 
  network: 83212
  cosmetic: 50301
  scriptlet: 17912
  html: 0
listset (total-discarded, last updated): 
  default: 
    user-filters: 0-0, never
    easylist: 69597-51, 3d.15h.26m
    easyprivacy: 27390-126, 3d.15h.25m
    plowe-0: 3632-776, 3d.15h.24m
    spa-0: 3897-37, 2h.52m
    spa-1: 4600-176, 3d.15h.29m
    ublock-abuse: 76-0, 3d.15h.22m
    ublock-badware: 4243-92, 3d.15h.20m
    ublock-filters: 32528-173, 3d.15h.19m
    ublock-privacy: 231-3, 3d.15h.18m
    ublock-quick-fixes: 380-0, 2h.51m
    ublock-unbreak: 1829-43, 3d.15h.16m
    urlhaus-1: 4670-0, 2h.50m
filterset (user): [empty]
modifiedUserSettings: [none]
modifiedHiddenSettings: [none]
supportStats: 
  allReadyAfter: 126 ms (selfie)
  maxAssetCacheWait: 76 ms

[gorhill]

What the URL of the popup which get closed in the logger?

[Vanerio]

The URL is the exact same URL that you type. Or in case you type a string, it is the brave search URL.

Edit: Here there is a screenshot of PROFILE B logger.

[gorhill]

I can reproduce. It happens only when we open from the New Tab, it does not happen if we open another tab and navigate from it.

[Vanerio]

Exactly! If you open another tab, you can navigate.
Thank you very much gorhill!