User agent reliability for JAWS Firefox Screen reader compatibility

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

Latest version tested

JAWS 2023.2311.34 with FF 115

• All tests: 104 pass of 127 tests (82%)
• ARIA tests: 38 pass of 47 tests (81%)
• WCAG tests: 70 pass of 86 tests (81%)

Reliability trend

Filter results: All testsARIA testsWCAG tests

Failing tests

	Test	Mode	What the user hears	Notes
	Page with xml:lang set on the html and p elements	Reading	Act-if tay-bill. Ray-day-oh.	Pronounced as English. Ignores xml:lang.
	application/xhtml+xml page with mismatching lang and xml:lang on the html element	Reading	Ga-raj. Doo-ble. Damm. Un, zway, dray.	Speech pronounced as lang=fr, but CSS matches :lang(de) and German CSS content pronounced as French.
	embed with title attribute	Reading	Video start. Play button. Mute button. Video end.	No description of non-text content
	embed with aria-label attribute	Reading	Video start. Play button. Mute button. Video end.	No description of non-text content
	embed with aria-labelledby attribute	Reading	Video start. Play button. Mute button. Video end.	No description of non-text content
	audio with aria-label attribute	Reading	Nothing	Nothing voiced for audio - no indication it exists
	audio with aria-labelledby attribute	Reading	Nothing	Nothing voiced for audio - no indication it exists
	audio with title attribute	Reading	Nothing	Nothing voiced for audio - no indication it exists
	video with aria-label attribute	Reading	Nothing	Nothing voiced for video - no indication it exists
	video with aria-labelledby attribute	Reading	Nothing	Nothing voiced for video - no indication it exists
	video with title attribute	Reading	Nothing	Nothing voiced for video - no indication it exists
	Interactive iframe with role=presentation and negative tabindex and no accessible name	Tabbing	Nothing	Skips over focusable link in iframe
	abbr with title	Reading	T L N	ABBR expansion ignored using default JAWS settings, available to sighted users as dotted underline tooltip links in browser.
	button containing img with aria-labelledby	Reading	Unlabeled six button	Reads "unlabeled button" without saying what button does.
	button containing img with aria-labelledby	Tabbing	Unlabeled six button, to activate press enter	Reads "unlabeled button" without saying what button does.
	area with title attribute	Reading	Image map link graphic, slash left underline arrow dot HTM. Image map link graphic, slash right underline arrow dot HTM.	Reads out URL instead of title
	area with title attribute	Tabbing	This is alt text graphic, slash left underline arrow dot HTM, image map link graphic. Slash right underline arrow dot HTM, image map link graphic.	Reads out URL instead of link title
	Data table with role=columnheader headers but no th	Reading	Morning, afternoon. Free, busy.	Table treated as layout table - not announced as table, and no headers read.
	Data table with td headers attribute	Reading	Table with 7 columns and 3 rows. Homework (column 1, row 1, homework). Exams (column 2, row 1, exams). Projects (column 3, row 1, projects). One (column 1, row 2, homework, one). Two (column 2, row 2, exams, two). Final (column 3, row 2, projects, final). One (column 4, row 2, one). Two (column 5, row 2, two). Final (column 6, row 2, final). Fifteen percent (column 1, row 3, homework one, fifteen percent). Fifteen percent (column 2, row 3, exams two, fifteen percent). Fifteen percent (column 3, row 3, projects final, fifteen percent). Twenty percent (column 4, row 3, one, twenty percent). Ten percent (column 5, row 3, two, ten percent). Ten percent (column 6, row 3, final, ten percent). Fifteen percent (column 7, row 3, fifteen percent).	Wrong headers (and no headers for some cells) read out when using table navigation commands.
	PDF1 Image with alt text	Reading	Nothing	Image ignored - but Firefox accessibility inspector shows figure named 'this is alt text' in accessibility tree
	PDF19 Phrase language set to German	Reading	Rah-di-oh	Pronounced as French, using document language, phrase language ignored
	PDF6 Table with header markup	Reading	Table with 2 columns and 2 rows. Morning (column 1). Afternoon (column 1). Free (morning afternoon, column 1). Busy (column 2).	Incorrect cell headers voiced.
	PDF6 Table with header markup and alt text	Reading	Table with 2 columns and 2 rows. Alt description for table. Morning (column 1). Afternoon (column 1). Free (morning afternoon, column 1). Busy (column 2).	Incorrect cell headers voiced.

Passing tests

	Test	Mode	What the user hears	Notes
	Page with lang set on the html and p elements	Reading	Act-eef tab-le. Rah-di-oh.	Pronounced as French and German.
	text/html page with mismatching lang and xml:lang on the html element	Reading	Ga-raj. Doo-ble. Damm. Un, deux, trois.	Speech pronounced as lang=fr, and CSS matches :lang(fr).
	Match lang subtags	Reading	Dam-he. Dam-he. Dam-he.	All pronounced as German.
	ARIA role=heading	Heading	First level heading, heading level 1. Second level heading, heading level 2.
	Heading is img with alt	Heading	Second level alt, heading level 2, graphic.
	applet with title attribute	Reading	Title text for applet
	applet with fallback content	Reading	Fallback content for applet
	applet with aria-label attribute	Reading	Aria label for applet
	applet with aria-labelledby attribute	Reading	This is ARIA-LABELLEDBY text
	applet inside figure with figcaption element	Reading	Figure caption for applet, figure. Figure caption for applet. Figure caption for applet, figure end.
	embed inside figure with figcaption	Reading	Figure caption for embed, figure. Video start. Play button. Mute button. Video end. Figure caption for embed. Figure caption for embed, figure end.
	object with fallback content	Reading	Fallback content for object
	object with title attribute	Reading	Title for object.
	object with aria-label attribute	Reading	ARIA label for object.
	object with aria-labelledby attribute	Reading	This is ARIA-LABELLEDBY text.
	a element placeholder link with no event handler or href attribute	Reading	Placeholder text
	a element placeholder link with no event handler or href attribute	Tabbing	Nothing	Skipped when tabbing, as expected
	iframe with fallback content	Reading	This is an. Link example hyperlink. In the target page.	Doesn't read out fallback content.
	iframe with fallback content	Tabbing	Frame, example target. Example hyperlink, link.	Reads out title tag of frame source page.
	iframe with title attribute	Reading	This is an. Link example hyperlink. In the target page.
	iframe with title attribute	Tabbing	This is an IFRAME title frame, this is an IFRAME title. Example hyperlink, link.
	Interactive iframe with role=presentation and no accessible name	Reading	This is an. Link, example hyperlink. In the target page.	role=presentation makes frame seamless
	Interactive iframe with role=presentation and no accessible name	Tabbing	Frame example target. Example hyperlink, link.
	Interactive iframe with role=presentation and negative tabindex and no accessible name	Reading	This is an. Link, example hyperlink. In the target page.	role=presentation makes frame seamless
	Interactive iframe with role=presentation and title attribute	Reading	This is an. Link, example hyperlink. In the target page.	role=presentation makes frame seamless
	Interactive iframe with role=presentation and title attribute	Tabbing	This is frame title, frame, this is frame title. Example hyperlink, link.
	Interactive iframe with role=presentation and aria-label attribute	Reading	This is an. Link, example hyperlink. In the target page.	role=presentation makes frame seamless
	Interactive iframe with role=presentation and aria-label attribute	Tabbing	This is aria-label, frame, this is aria-label. Example hyperlink, link.
	button containing img with alt	Reading	This is image alt, button
	button containing img with alt	Tabbing	This is image alt, button, to activate press enter
	button containing img with title attribute	Reading	This is image title, button
	button containing img with title attribute	Tabbing	This is image title, button, to activate press enter
	button containing img with aria-label	Reading	This is image aria label, button
	button containing img with aria-label	Tabbing	This is image aria label, button, to activate press enter
	button with title containing img with null alt	Reading	This is button title, button
	button with title containing img with null alt	Tabbing	This is button title, button, to activate press enter
	button with aria-label containing img with null alt	Reading	This is button aria label, button
	button with aria-label containing img with null alt	Tabbing	This is button aria label, button, to activate press enter
	input type=image with alt	Reading	This is image button alt text, button
	input type=image with alt	Tabbing	This is image button alt text, button, to activate press enter
	input type=image with title attribute	Reading	This is image button title text, button
	input type=image with title attribute	Tabbing	This is image button title text, button, to activate press enter
	input type=image with aria-label attribute	Reading	This is image button aria label text, button
	input type=image with aria-label attribute	Tabbing	This is image button aria label text, button, to activate press enter
	input type=image with aria-labelledby attribute	Reading	This is image button aria labelled by text, button
	input type=image with aria-labelledby attribute	Tabbing	This is image button aria labelled by text, button, to activate press enter
	input type=text with aria-describedby attribute	Reading	First name. First name. Blank, edit, first name edit. Blank, a bit of instructions for this field linked with aria describedby.
	input type=text with aria-describedby attribute	Tabbing	First name, edit, a bit of instructions for this field linked with aria describedby, type in text
	input type=text with title attribute	Reading	Enter search text. Blank edit, enter search text edit.
	input type=text with title attribute	Tabbing	Enter search text, edit, type in text
	input type=text with aria-label attribute	Reading	Enter search text. Blank edit, enter search text edit.
	input type=text with aria-label attribute	Tabbing	Enter search text, edit, type in text
	input type=text with aria-labelledby attribute	Reading	Enter search text. Enter search text. Blank edit, enter search text edit.
	input type=text with aria-labelledby attribute	Tabbing	Enter search text, edit, type in text
	input type=text with label for	Reading	Enter search text. Enter search text. Blank edit, enter search text edit.
	input type=text with label for	Tabbing	Enter search text, edit, type in text
	input type=text inside label with text before control	Reading	Enter search text. Blank, edit, enter search text, edit.
	input type=text inside label with text before control	Tabbing	Enter search text, edit, type in text
	input type=text inside label with text after control	Reading	Blank, edit, enter search text, edit. Blank, enter search text.
	input type=text inside label with text after control	Tabbing	Enter search text, edit, type in text
	input type=text inside label with text before and after control	Reading	Enter search text. Blank, edit, enter search text, blanks not allowed edit.
	input type=text inside label with text before and after control	Tabbing	Enter search text, blanks not allowed, edit, type in text
	fieldset containing links	Reading	Group start, legend for enclosed links. Legend for enclosed links. Link home. Link about. Link contact. Group end, legend for enclosed links.
	fieldset containing links	Tabbing	Legend for enclosed links group, home link. About link. Contact link.
	Yes/No radio buttons inside fieldset element	Reading	Group start, I agree to terms and conditions. I agree to terms and conditions. Yes, radio button checked, one of two. No, radio button not checked, two of two. Group end, I agree to terms and conditions. Group start, sign me up to the newsletter. Sign me up to the newsletter. Yes, radio button checked, one of two. No, radio button not checked, two of two. Group end, sign me up to the newsletter.
	Yes/No radio buttons inside fieldset element	Tabbing	I agree to terms and conditions group, yes, radio button checked, one of two. Sign me up to the newsletter group, yes, radio button checked, one of two.
	img with null alt	Reading	Nothing	Ignored as expected
	img with alt	Reading	This is alt text, graphic
	img with figcaption	Reading	Violet, taken on 12/11/2010, figure. Violet, taken on 12/11/2010. Violet, taken on 12/11/2010, figure end.
	img with title	Reading	This is title text, graphic
	img with aria-label	Reading	This is an aria label, graphic
	img with aria-labelledby	Reading	This is an aria labelled by, graphic. This is an aria labelled by
	area and img with alt attributes	Reading	Image map link graphic, this is left alt text. Image map link graphic, this is right alt text.
	area and img with alt attributes	Tabbing	This is alt text graphic, this is left alt text, image map link graphic. This is right alt text, image map link graphic.
	area with alt attribute and img with null alt	Reading	Image map link graphic, this is left alt text. Image map link graphic, this is right alt text.
	area with alt attribute and img with null alt	Tabbing	Graphic, this is left alt text, image map link graphic. This is right alt text, image map link graphic.
	area with aria-label attribute	Reading	Image map link graphic, this is left aria label text. Image map link graphic, this is right aria label text.
	area with aria-label attribute	Tabbing	This is alt text, graphic, this is left aria label text, image map link graphic. This is right aria label text, image map link graphic.
	area with aria-labelledby attribute	Reading	Image map link graphic, this is left aria labelled by text. Image map link graphic, this is right aria labelled by text.
	area with aria-labelledby attribute	Tabbing	This is alt text graphic, this is left aria labelled by text, image map link graphic. This is right aria labelled by text, image map link graphic.
	Link containing img with alt	Reading	Link graphic, this is a link alt
	Link containing img with alt	Tabbing	This is a link alt, link graphic
	Link containing img with title	Reading	Link graphic, this is an image title
	Link containing img with title	Tabbing	This is an image title, link graphic
	Click Here link with title attribute	Reading	Link, click here
	Click Here link with title attribute	Tabbing	Click here, link, this is a link title
	Link text replaced by aria-label attribute	Reading	Link, this is an aria label
	Link text replaced by aria-label attribute	Tabbing	This is an aria label, link
	Link text replaced by aria-labelledby attribute	Reading	Link, this is an aria labelled by. This is an aria labelled by.
	Link text replaced by aria-labelledby attribute	Tabbing	This is an aria labelled by, link
	Click Here link with aria-describedby attribute	Reading	Link, click here. This is an aria described by.
	Click Here link with aria-describedby attribute	Tabbing	Click here, link, this is an aria described by.	aria-describedby is read when tabbing
	Layout table with single cell	Reading	This is some text.	Treated as a layout table.
	Layout table with role=presentation	Reading	Example. Navigation. Links. Content.	Table treated as layout table - not announced as table.
	Data table with role=grid	Reading	Grid with two columns and two rows. Morning (column one, row one, morning). Afternoon (column two, row one, morning, afternoon). Free (column one, row two, morning, free). Busy (column two, row two, afternoon, busy). Grid end.	Reads cell headers when using table navigation commands.
	Data table with role=table	Reading	Table with 1 columns and 1 rows. This is some text.
	Data table with summary and th	Reading	Table with two columns and two rows. Data table summary. Morning (column one, row one, morning). Afternoon (column two, row one, afternoon). Free (column one, row two, morning, free). Busy (column two, row two, afternoon, busy).
	Data table with caption and th	Reading	Table with two columns and two rows. Data table caption. Morning (column one, row one, morning). Afternoon (column two, row one, afternoon). Free (column one, row two, morning, free). Busy (column two, row two, afternoon, busy).
	Data table with th cell headers	Reading	Table with two columns and two rows. Morning. Afternoon. Free. Busy.	Reads cell headers when using table navigation commands
	Data table with th scope on cell headers	Reading	Table with 5 columns and 4 rows. Contact information. Blank (column 1, row 1, blank). Name (column 2, row 1, name). Phone number (column 3, row 1, phone number). Fax number (column 4, row 1, fax number). City (column 5, row 1, city). One (column 1, row 2, one). Joel Garner (column 2, row 2, name, Joel Garner). 412 212 5421 (column 3, row 2, phone number, Joel Garner, 412 212 5421). 412 212 5400 (column 4, row 2, fax number, Joel Garner, 412 212 5400). Pittsburgh (column 5, row 2, city, Joel Garner, Pittsburgh)	Row header read out along with column header for cells when using table navigation commands.
	PDF18 Document with doc title	Reading	This is document title - SR_PDF_doc_title.pdf	Voices PDF document title, and filename part of URL.
	PDF9 Document with headings	Reading	Heading 1, heading level 1. Heading 1.2, heading level 2.
	PDF4 Decorative image marked as artifact	Reading	Nothing	Image ignored as expected and not present in Firefox accessibility tree.
	PDF16 Document default language set to French	Reading	Act-eef tab-le	Document pronounced as French, document language applied