Steps to reproduce:

1. Enable Attempt to cancel speech for expired focus events (set it to yes)
2. Open a browse mode document, e.g. in Firefox
3. Press Ctrl+NVDA+f to open the NVDA find dialog.

Actual behavior:

NVDA only announces:

Type the text you wish to find  edit

Find dialog is shown by the speech viewer, but it is interrupted immediately.

Expected behavior:

NVDA announces:

Find  dialog
Type the text you wish to find  edit

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

alpha-20175,9967903a

Windows version:

Windows 10 2004 19041.208

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

Firefox 76.0.1

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

NO

If addons are disabled, is your problem still occuring?

Yes

Did you try to run the COM registry fixing tool in NVDA menu / tools?

No, n/a