@cacioepepe ,
REVISED 2022-02-27 Sunday
REVISED 2022-04-13 Wednesday
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With Brave Browser running, in a New Window, go to brave://settings/clearBrowserData
Select the Basic tab. Enable all three of:
- Browsing History
- Cookies and other site data
- Cached images and files
Click on the Clear Data button
Examine all the settings for the other two tabs: Advanced / On exit
Be certain that those settings are what they should be, for your usage. In time, you will have tested those arrangments, and figured out what you need, there.
IMPORTANT: The cleaning / clearing away of cookies, thru that process, WILL NOT REMOVE ALL of them! If you are intent on removing all cookies, then you must also, in a New Window, be sure to go to: brave://settings/siteData and manually remove sources for cookies, there.
Quit Brave Browser. Wait a moment. Start Brave Browser.
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In a New Window, go to brave://settings/cookies
Scroll down that settings page, to Sites that can always use cookies
Click the Add button
Enter www.ing.pl as the site . . . but do not Enable
- Current Private session only
- Including third-party cookies on this site
Click the Add button
Repeat those steps for the following sources of possible cookies:
content.ingbank.pl
ospe.ing.pl
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Next, go to brave://settings/content/javascript
Scroll down that javascript settings page to Allowed to use javascript
Click the Add button
Enter www.ing.pl as the site . . . but do not Enable
- Current Private session only
Click the Add button
Repeat those steps for the following sources of javascripts:
content.ingbank.pl
ospe.ing.pl
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Now go to brave://settings/shields
For Trackers & ads blocking set that to Standard
For Upgrade connections to HTTPS set that slide switch to Disabled
For Cookie blocking set that to Only cross-site
For Fingerprinting blocking set that to anything BUT NOT Disabled
Close the Brave Browser settings window.
Next, you will test both of two scenarios
First - by opening a New Window
Second - by opening a New Private Window
AFTER testing access to the bank, using the New Window . . . you will log out of the bank website (if you got that far) and then Quit Brave Browser . . . or simply Quit Brave Browser.
NEXT, you will start Brave Browser; and, you will test access to the bank, using the New Private Window.
By then, you will have ideas about, how to test further. YOU are the troubleshooter, for your issue.
Maintain detailed typed or written notes of your progress, your steps taken, the results for each. Report back here, with your findings. Thanks.
Help:
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In order to learn, what website sources (of cookies and scripts) may be involved, learn to use the Developer Tools > Network tool for monitoring items, and use the Developer Tools > Application for learning sources of, and examining, Cookies.
How to use Developer Tools
"“https://www.lifewire.com/web-browser-developer-tools-3988965"”
““https://developer.chrome.com/docs/devtools/network/reference/””
““https://docs.microsoft.com/en-us/microsoft-edge/devtools-guide-chromium/””
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Developer Tools > Network tool is where you search for sources of scripts and other items that will qualify despite their not being obvious scripts.

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Developer Tools > Application tool is where you will find the sources of cookies.
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