Firefox desktop · Research guidance. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Check whether the page qualifies
Mozilla says the Reader View icon appears for eligible pages. Start with a written article containing the instructions you need. The absence of the icon on an interactive programme page does not establish that the page failed to load; the page may simply not be an eligible article extraction.
Enter and adjust the article view
Use the offered Reader View icon and inspect the extracted article. Mozilla documents controls for typeface, text size, layout and themes, including advanced spacing choices. Choose a readable presentation without assuming that increasing text size changes the source video quality or a caption track inside a separate player.
Check speech resources if needed
Mozilla says Reader View’s read-aloud option appears only when the operating system has text-to-speech information for the article’s language. A missing speech control therefore needs that language-resource check before a general browser reset. Identify the article language, operating system and installed speech resources rather than assuming every language is available. Confirm the matching voice in the operating system’s documented speech settings.
Return for interactive actions
Mozilla describes Reader View as removing clutter including buttons and video. Keep the original page for actions the article view omits. If the extracted text is incomplete, compare the original paragraph directly rather than treating the simplified view as a complete record of every control and message that the publisher supplied.
Questions, answered
Can the OS language resources affect read aloud?
Yes. Mozilla documents that requirement.
Is Reader View intended to preserve every button and video?
No. It simplifies the page and removes such elements.