This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Has Ver 4 started checking ending HTML tags?

  • 2 fhreagra
  • 1 leis an bhfadhb seo
  • 4 views
  • Freagra is déanaí ó sparky333

more options

I left the > off a
tag and in Ver 3.6.x it is no problem. In Ver 4, 5 and 6, it is. In this case, it was the tag just before a <form> tab and the Submit button does not work.

I left the > off a <br> tag and in Ver 3.6.x it is no problem. In Ver 4, 5 and 6, it is. In this case, it was the tag just before a <form> tab and the Submit button does not work. <br <form method=post action=post.php>

Réiteach roghnaithe

Yes, if the HTML5 parser is enabled (pref html5.parser.enable) then a lot of such mistakes that didn't cause problems in Firefox 3 can now be causing problems.

You can usually see such minor mistakes if you inspect the page source code.

  • Firefox > Web Developer > Page Source
  • Tools > Web Developer > Page Source
  • Right-click on a web page to open the right-click context menu and select Page Source
Read this answer in context 👍 0

All Replies (2)

more options

Réiteach Roghnaithe

Yes, if the HTML5 parser is enabled (pref html5.parser.enable) then a lot of such mistakes that didn't cause problems in Firefox 3 can now be causing problems.

You can usually see such minor mistakes if you inspect the page source code.

  • Firefox > Web Developer > Page Source
  • Tools > Web Developer > Page Source
  • Right-click on a web page to open the right-click context menu and select Page Source
more options

Thanks cor-el. These are two things I didn't know about. I mean I knew about viewing the page source, but didn't know it shows bad tag construct. Too bad it doesn't alert for missing ending tags, eh?

Athraithe ag sparky333 ar