Steps to reproduce:

1. Open Firefox
2. Disable browse mode
3. Focus the address bar with alt+d
4. Open: data:text/html, <p>something</p>
5. Focus the document by tabbing into it.

Actual behavior:

NVDA says: Document object replacement character.

Expected behavior:

No announcement of object replacement character as it is irrelevant.

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

alpha-20220,1c4519a6

Windows version:

Windows 10 2004

Name and version of other software in use when reproducing the issue:

Firefox 76.0.1

Additional details

1. The object replacement character is stripped from virtual buffers
2. Introduced by Add symbols from Orca #11110