[Skip navigation links]
Login

User agent reliability for NVDA Firefox Screen reader compatibility

Last updated: May 20, 2018

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

Latest version tested

NVDA 2017.3 with FF60

Reliability trend

100%80%60%40%20%0%201382%201485%201579%201676%201782%

Failing tests

 TestModeWhat the user hearsNotes
WorseEMBED with ARIA-LABEL attributeReadingFrame, button play. Button mute. Out of frame.No description of non-text content.
WorseEMBED with ARIA-LABELLEDBY attributeReadingFrame, button play. Button mute. Out of frame.No description of non-text content.
FailOBJECT with fallback contentReadingEmbedded object unavailableNo description voiced for object
FailOBJECT with ARIA-LABEL attributeReadingEmbedded object unavailable - ARIA label for objectARIA label is announced - but no way to interact with object
FailOBJECT with ARIA-LABELLEDBY attributeReadingEmbedded object unavailable - This is ARIA-LABELLEDBY textARIA label is announced - but no way to interact with object
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 attributeReadingBlankNothing voiced for video - no indication it exists
FailVIDEO with ARIA-LABELLEDBY attributeReadingBlankNothing voiced for video - no indication it exists
WorseIFRAME with fallback contentTabbingSilence. Frame, example hyperlink, link. Out of frame.Silence when tab focus stops on iframe.
WorseIFRAME with titleTabbingSilence. This is an iframe title, frame, example hyperlink, link. Out of frame.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
WorseFIELDSET containing linksTabbingHome link. About link. Contact link.Legend not read when tabbing forward, but is read when shift-tabbing backwards.
FailAREA with TITLE attributeReadingGraphic, this is alt text. Graphic link, slash left arrow dot HTM. Graphic link, slash right arrow dot HTM.Link URLs read out instead of link title
FailAREA with TITLE attributeTabbingSlash left arrow dot HTM, link, this is alt text, graphic. Slash right arrow dot HTM, link, this is alt text, graphic.Link URLs read out each time user tabs.
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.  
BetterAPPLET with fallback contentReadingFallback content for appletApplets not supported from Firefox 56 onwards  
BetterAPPLET with ARIA-LABEL attributeReading Nothing Applets not supported from Firefox 56 onwards  
BetterAPPLET with ARIA-LABELLEDBY attributeReading Nothing Applets not supported from Firefox 56 onwards  
PassAPPLET inside FIGURE with FIGCAPTION elementReadingFigure caption for appletApplets not supported from Firefox 56 onwards  
PassEMBED inside FIGURE with FIGCAPTIONReadingFrame, button play. Button mute. Out of frame. Figure caption for embed.  
PassA element placeholder link with no event handler or HREFReadingPlaceholder text  
PassA element placeholder link with no event handler or HREFTabbing Nothing Skipped when tabbing, as expected  
PassIFRAME with fallback contentReadingFrame, this is an, link, example hyperlink in the target page. Out of frame, blank.Fallback content is ignored  
PassIFRAME with titleReadingFrame, this is an, link, example hyperlink in the target page. Out of frame, blank.  
BetterABBR with titleReadingEt cetera  
PassBUTTON containing only an IMG with an ALT attributeReadingButton graphic, this is image alt  
PassBUTTON containing only an IMG with an ALT attributeTabbingThis is image alt, graphic button  
PassBUTTON containing only an IMG with TITLE attributeReadingButton graphic, this is image title.  
PassBUTTON containing only an IMG with TITLE attributeTabbingThis is image title, graphic button.  
PassBUTTON containing only an IMG with aria-labelReadingButton graphic, this is image aria label.  
PassBUTTON containing only an IMG with aria-labelTabbingThis is image aria label, graphic button.  
PassBUTTON containing only an IMG with aria-labelledbyReadingButton graphic, this is an aria labelled by, this is an aria labelled by  
PassBUTTON containing only an IMG with aria-labelledbyTabbingThis is an aria labelled by, graphic button.  
PassBUTTON with TITLE containing only an IMG with null ALTReadingButton, this is button title  
PassBUTTON with TITLE containing only an IMG with null ALTTabbingThis is button title, button  
PassBUTTON with aria-label containing only an IMG with null ALTReadingButton, this is button aria label  
PassBUTTON with aria-label containing only an 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  
BetterAREA with ALT attributeReadingGraphic, this is alt text. Graphic link, this is left alt text. Graphic link, this is right alt text  
BetterAREA with ALT attributeTabbingThis is left alt text, link, this is alt text graphic. This is right alt text, link, this is alt text graphic  
BetterAREA with aria-label attributeReadingGraphic, this is alt text, Graphic link, this is left aria label text. Graphic link, this is right aria label text.  
BetterAREA with aria-label attributeTabbingThis is left aria label text, link, this is alt text, graphic. This is right aria label text, link, this is alt text, graphic  
BetterAREA with aria-labelledby attributeReadingGraphic, this is alt text. Graphic link, this is left aria labelled by text. Graphic link, this is right aria labelled by text.  
BetterAREA with aria-labelledby attributeTabbingThis is left aria labelled by text, link, this is alt text, graphic. This is right aria labelled by text, link, this is alt text, graphic  
PassA link containing only an IMG with ALTReadingLink graphic, this is a link alt  
PassA link containing only an IMG with ALTTabbingThis is a link alt, graphic link  
PassA link containing only an IMG with TITLEReadingLink graphic, this is an image title  
PassA link containing only an 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  
PassLink text replaced by aria-label attributeReadingLink, this is an aria label  
BetterLink text replaced by aria-label attributeTabbingThis is an aria label, link  
PassLink text replaced by aria-labelledby attributeReadingLink, this is an aria labelled by, this is an aria labelled by  
BetterLink text replaced by 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 editable 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.