thunderbird/firefox: braille buttons stop working

[burmancomp]

Steps to reproduce:

Thunderbird:

• tether braille to review
• ensure you are using plain text mode in thunderbird message compose window
• write some lines
• press control+home
• press control+a to select all
• press scroll forward or down button of braille display
• try to move back with scroll back or up buttons

firefox:

• tether braille to review
• start writing comment to this issue (write some lines)
• press control+home
• press control+a to select all
• press scroll forward or down button of braille display
• try to move back with scroll back or up buttons

  Actual behavior:

  Nothing happens.

  Expected behavior:

  Scrolling should succeed.

  NVDA logs, crash dumps and other attachments:

  Essential lines: Input: kb(laptop):control+a DEBUGWARNING - NVDAObjects.IAccessible.normalizeIA2TextFormatField (21:37:27.473) - MainThread (6596): Unsupported value for text-align attribute: "start" IO - braille.BrailleBuffer.update (21:37:27.473) - MainThread (6596): Braille regions text: [' '] IO - braille.BrailleHandler.update (21:37:27.473) - MainThread (6596): Braille window dots: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Input: br(albatross):right DEBUGWARNING - NVDAObjects.IAccessible.IA2TextTextInfo._getLineOffsets (21:37:29.953) - MainThread (6596): IAccessibleText::textAtOffset failed Traceback (most recent call last): File "NVDAObjects\IAccessible__init.py", line 384, in _getLineOffsets start, end, text = self.obj.IAccessibleTextObject.TextAtOffset(offset, IA2.IA2_TEXT_BOUNDARY_LINE) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\src\nvda.venv\Lib\site-packages\comtypes_memberspec.py", line 523, in call__ return self.fget(self.instance, *args) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ _ctypes.COMError: (-2147024809, 'Parametri ei kelpaa.', (None, None, None, 0, None)) DEBUGWARNING - NVDAObjects.IAccessible.normalizeIA2TextFormatField (21:37:29.953) - MainThread (6596): Unsupported value for text-align attribute: "start" IO - braille.BrailleBuffer.update (21:37:29.962) - MainThread (6596): Braille regions text: [' '] IO - braille.BrailleHandler.update (21:37:29.962) - MainThread (6596): Braille window dots: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Input: br(albatross):left ... Braille is not updated after left key (or up key) although pressing them several times.

  System configuration

  NVDA installed/portable/running from source:

  installed/source

  NVDA version:

  latest

  Windows version:

  w11

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

  thunderbird 128.2.0esr, firefox 130.0

  Other information about your system:

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.

If NVDA add-ons are disabled, is your problem still occurring?

yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

[seanbudd]

Did this break in a recent version of thunderbird or NVDA? Do you know which version of thunderbird or NVDA which it broke?

[burmancomp]

Unfortunately I do not know when that behavior has appeared but I just tried same (some text then control+home, then control+a, then scroll forward, and then scroll back) with this edit field getting same result (I did not checked).

[Adriani90]

Cc: @LeonarddeR

[burmancomp]

This seems to be thunderbird/firefox problem. I just tried with chrome, and I was unable to reproduce this.

[burmancomp]

I edited steps to reproduce.

[Adriani90]

cc: @jcsteh at least for Firefox. I think there were some changes with regard to caret movement in NVDA recently. Maybe this had an impact.