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Firefox/NVDA: ENTER on button opens browser context menu

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From: Detlev Fischer
Date: Sep 19, 2018 6:18AM

Hi,

I have a problem when testing accessibility in Firefox that is driving
me to distraction - I hope someone has an answer.
My device: Windows 10 on recent touch-enabled hybrid laptop with
external montor.

The problem:
When I use Firefox (62.0) and turn on NVDA (2018.3, default settings),
native buttons that reacted on ENTER before turning on NVDA (e.g. open a
drop-down) stop working: I now get the browser context menu displayed
instead. Buttons work when I press ALT at the same time, but that should
not be necessary. My colleagues with different devices cannot reproduce
the problem in Firefox/NVDA.

This is what I have tried:

- Search Webaim mail archives and the web to find an answer
- In Firefox' about:config settings, set dom.event.contextmenu.enabled
to FALSE
- In the device settings > Human Interface Devices, deactivating HID
conformant touchscreen
- Turning Firefox Caret browsing (F7) on and off

Nothing seems to have an effect on the problem.
Has anyone got an idea what is happening here?

Best,
Detlev

--
Detlev Fischer
Testkreis
Werderstr. 34, 20144 Hamburg

Mobil +49 (0)157 57 57 57 45

http://www.testkreis.de
Beratung, Tests und Schulungen für barrierefreie Websites


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