Extension can't be added to multiple Mozilla profiles via AdGuard

[maxikuzmin]

The Mozilla Firefox browser set as a default browser

You should have to two test profiles in Mozilla Firefox: profile "ONE" and profile "TWO"

Log in to the Mozilla Firefox browser under the profiles "ONE"

Open AdGuard -> Settings -> Browser Assistant

"Get the extension" is displayed

Click "Get the extension" and install assistant

Browser Assistant was successfully installed

Log in to the Mozilla Firefox browser under the profiles "TWO"

Open AdGuard -> Settings -> Browser Assistant

"Get the extension" is not displayed. This is should displayed for both profiles or only for first profile? How i can add extension for profile "TWO"?