User agent reliability for NVDA Firefox Screen reader compatibility

Last updated: September 5, 2016

Shows how well NVDA Firefox supports ARIA and WCAG sufficient techniques.

Failing tests

TestModeWhat the user hearsNotes
FailAPPLET with ARIA-LABEL attributeReadingClickable button. A plugin is needed to display this content. Button, hide plugin.No description of non-text content
FailAPPLET with ARIA-LABELLEDBY attributeReadingClickable button. A plugin is needed to display this content. Button, hide plugin.No description of non-text content
FailEMBED with ARIA-LABEL attributeReadingIframe, button play. Button mute. Out of iframe.No description of non-text content.
FailEMBED with ARIA-LABELLEDBY attributeReadingIframe, button play. Button mute. Out of iframe.No description of non-text content.
FailOBJECT with fallback contentReadingBlankNothing voiced for object - no indication it exists
FailOBJECT with ARIA-LABEL attributeReading Nothing Nothing voiced for object - no indication it exists
FailOBJECT with ARIA-LABELLEDBY attributeReading Nothing Nothing voiced for object - no indication it exists
FailAUDIO with ARIA-LABEL attributeReading Nothing Nothing voiced for audio - no indication it exists
FailAUDIO with ARIA-LABELLEDBY attributeReading Nothing Nothing voiced for audio - no indication it exists
FailVIDEO with ARIA-LABEL attributeReading Nothing Nothing voiced for video - no indication it exists
FailVIDEO with ARIA-LABELLEDBY attributeReading Nothing Nothing voiced for video - no indication it exists
FailIFRAME with fallback contentTabbingSilence. Iframe, example hyperlink, link.Silence when tab focus stops on iframe.
FailIFRAME with titleTabbingSilence. This is an iframe title, iframe, example hyperlink, link.Silence when tab focus stops on iframe.
FailINPUT type=text with TITLE attributeReadingEdit, auto completeDoesn’t read title in Reading mode
FailINPUT type=text with aria-label attributeReadingEdit, auto completeDoesn’t read aria label in Reading mode
FailFIELDSET containing linksTabbingHome link. About link. Contact link.Legend not read when tabbing forward, but is read when shift-tabbing backwards.
FailAREA with ALT attributeReadingGraphic, areas in the library. Graphic, select an area for more information on that area, dot, areas in the library. Graphic, select an area for more information on that area.Reads ALT on parent IMG over and over, with no indication of AREA links (exactly what gets read is affected by surrounding content).
FailAREA with TITLE attributeReadingGraphic, this is alt text.No indication AREA links exist
FailAREA with TITLE attributeTabbingSlash left arrow dot HTM, link. Slash right arrow dot HTM, link.Link URLs read out each time user tabs.
FailAREA with aria-label attributeReadingGraphic, this is alt text, this is alt textNo indication AREA links exist
FailAREA with aria-labelledby attributeReadingGraphic, this is alt text, this is alt text, this is left aria labelled by text, this is right aria. Labelled by text.No indication AREA links exist
FailData table with role rowheader headers but no THReadingMorning. Afternoon. Free. Busy.Table treated as layout table - not announced as table, and no headers read.
FailData table with TH row/columns headers with SCOPEReading Table with 4 rows and 5 columns, contact information. Row 1, column 1. Column 2, name. Column 3, phone number. Column 4, fax number. Column 5, city. Row 2, column 1, one. Name, column 2, Joel Garner. Phone number, column 3, 412 212 5421. Fax number, column 4, 412 212 5400. City, column 5, Pittsburgh Column headers, but no row headers, announced for TD cells.

Passing tests

TestModeWhat the user hearsNotes
PassARIA role=headingHeadingFirst level heading, heading level 1. Second level heading, heading level 2.
PassHeading is IMG with ALTHeadingSecond level alt, graphic heading level 2.
PassAPPLET with fallback contentReadingFallback content for applet
PassAPPLET inside FIGURE with FIGCAPTION elementReadingClickable button. A plugin is needed to display this content. Button, hide plugin. Figure caption for applet.
PassEMBED inside FIGURE with FIGCAPTIONReadingIframe, button play. Button mute. Out of iframe. Figure caption for embed.
PassIFRAME with fallback contentReadingIframe, this is an, link, example hyperlink in the target page. Out of iframe, blank.Fallback content is ignored
PassIFRAME with titleReadingIframe, this is an, link, example hyperlink in the target page. Out of iframe, blank.
PassABBR with titleReadingEt cetera
PassBUTTON wraps only an IMG with an ALT attributeReadingButton graphic, this is image alt
PassBUTTON wraps only an IMG with an ALT attributeTabbingThis is image alt, graphic button
PassBUTTON wraps IMG with TITLE attributeReadingButton graphic, this is image title.
PassBUTTON wraps IMG with TITLE attributeTabbingThis is image title, graphic button.
PassBUTTON wraps IMG with aria-labelReadingButton graphic, this is image aria label.
PassBUTTON wraps IMG with aria-labelTabbingThis is image aria label, graphic button.
PassBUTTON wraps IMG with aria-labelledbyReadingButton graphic, this is an aria labelled by, this is an aria labelled by
PassBUTTON wraps IMG with aria-labelledbyTabbingThis is an aria labelled by, graphic button.
PassBUTTON with TITLE wraps IMG with null ALTReadingButton, this is button title
PassBUTTON with TITLE wraps IMG with null ALTTabbingThis is button title, button
PassBUTTON with aria-label wraps IMG with null ALTReadingButton, this is button aria label
PassBUTTON with aria-label wraps IMG with null ALTTabbingThis is button aria label, button
PassINPUT type=image with ALT attributeReadingButton, this is image button alt text
PassINPUT type=image with ALT attributeTabbingThis is image button alt text, button
PassINPUT type=image with TITLE attributeReadingButton, this is image button title text
PassINPUT type=image with TITLE attributeTabbingThis is image button title text, button
PassINPUT type=image with aria-label attributeReadingButton, this is image button aria label text
PassINPUT type=image with aria-label attributeTabbingThis is image button aria label text, button
PassINPUT type=image with aria-labelledby attributeReadingButton, this is image button aria labelled by text, this is image button aria labelled by text
PassINPUT type=image with aria-labelledby attributeTabbingThis is image button aria labelled by text, button
PassINPUT type=text with aria-describedby attributeReadingFirst name, edit, auto complete, a bit of instructions for this field linked with aria describedby
PassINPUT type=text with aria-describedby attributeTabbingFirst name, edit, auto complete, a bit of instructions for this field linked with aria describedby, blank
PassINPUT type=text with TITLE attributeTabbingEnter search text, edit, auto complete, blank
PassINPUT type=text with aria-label attributeTabbingEnter search text, edit, auto complete, blank
PassINPUT type=text with aria-labelledby attributeReadingEnter search text, edit, auto complete
PassINPUT type=text with aria-labelledby attributeTabbingEnter search text, edit, auto complete, blank
PassINPUT type=text with LABEL FORReadingEnter search text, edit, auto complete
PassINPUT type=text with LABEL FORTabbingEnter search text, edit, auto complete, blank
PassINPUT type=text inside LABEL with text before controlReadingClickable, enter search text, edit, auto complete
PassINPUT type=text inside LABEL with text before controlTabbingEnter search text, edit, auto complete, blank
PassINPUT type=text inside LABEL with text after controlReadingClickable, edit auto complete, enter search text
PassINPUT type=text inside LABEL with text after controlTabbingEnter search text, edit, auto complete, blank
PassINPUT type=text inside LABEL with text before and after controlReadingClickable, enter search text, edit auto complete, blanks not allowed
PassINPUT type=text inside LABEL with text before and after controlTabbingEnter search text, blanks not allowed, edit, auto complete, blank
PassFIELDSET containing linksReadingLegend for enclosed links. Link home, link about, link contact.
PassYes/No radio buttons inside FIELDSETReadingI agree to terms and conditions. Clickable radio button checked, yes, clickable radio button not checked, no. Sign me up to the newsletter. Clickable radio button checked, yes, clickable radio button not checked, no.
PassYes/No radio buttons inside FIELDSETTabbingI agree to terms and conditions grouping, yes radio button checked, one of two. Sign me up to the newsletter grouping, yes radio button checked, one of two.
PassIMG with null ALT attributeReading Nothing Ignored as expected
PassIMG with ALTReadingGraphic, this is alt text
PassIMG with FIGCAPTIONReadingViolet, taken on 12/11/2010
PassIMG with TITLEReadingGraphic, this is title text
PassIMG with aria-labelReadingGraphic, this is an aria label
PassIMG with aria-labelledbyReadingGraphic, this is an aria labelled by, this is an aria labelled by
PassAREA with ALT attributeTabbingReference link rect. Audio visual lab link rect.
PassAREA with aria-label attributeTabbingThis is left aria label text, link. This is right aria label text, link
PassAREA with aria-labelledby attributeTabbingThis is left aria labelled by text, link. This is right aria labelled by text, link
PassA link wraps IMG with ALTReadingLink graphic, this is a link alt
PassA link wraps IMG with ALTTabbingThis is a link alt, graphic link
PassA link wraps IMG with TITLEReadingLink graphic, this is an image title
PassA link wraps IMG with TITLETabbingThis is an image title, graphic link
PassA «click here» link with TITLE attributeReadingLink, click here
PassA «click here» link with TITLE attributeTabbingClick here link, this is a link title
PassA «click here» link with aria-label attributeReadingLink, this is an aria label
PassA «click here» link with aria-label attributeTabbingThis is an aria label, link
PassA «click here» link with aria-labelledby attributeReadingLink, this is an aria labelled by, this is an aria labelled by
PassA «click here» link with aria-labelledby attributeTabbingThis is an aria labelled by, link
PassA «click here» link with aria-describedby attributeReadingLink click here, this is an aria described by
PassA «click here» link with aria-describedby attributeTabbingClick here link, this is an aria described by
PassLayout table with single cellReadingThis is some text.Treated as a layout table.
PassLayout table with role presentationReadingExample. Navigation. Links. Content.Table treated as layout table - not announced as table.
PassData table with role gridReadingTable with two rows and two columns, row one column one, morning. Column two afternoon. Row two, morning, column one, free. Afternoon, column two, busy.
PassData table with SUMMARY and THReadingTable with two rows and two columns, data table summary. Row one column one, morning. Column two afternoon. Row two, morning, column one, free. Afternoon, column two, busy.
PassData table with CAPTION and THReadingTable with two rows and two columns, data table caption. Row one column one, morning. Column two afternoon. Row two, morning, column one, free. Afternoon, column two, busy.
PassData table with TH cell headersReadingTable with two rows and two columns, row one, column one, morning. Column two, afternoon. Row two, morning, column one, free. Afternoon, column two, busy.
PassData table with TD HEADERS attributeReading Table with 3 rows and 7 columns, row 1 column 1, homework. Column 2, exams. Column 5, projects. Row 2, exams, column 2, one. Exams, column 3, two. Exams, column 4, final. Projects, column 5, one. Projects, column 6, two. Projects, column 7, final. Row 3, homework, column 1, fifteen percent. Exams one, column 2, fifteen percent. Exams two, column 3, fifteen percent. Exams final, column 4, twenty percent. Projects one, column 5, ten percent. Projects two, column 6, ten percent. Projects final, column 7, fifteen percent. Headers associated with the cell read out before column number.