Sign up ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

How can I spell check web pages when browsing them? I've added the After the Deadline Chrome extension, but it only seems to work on forms and not whole web pages. I'm happy to use Firefox if that provides a solution.

share|improve this question
Why do you want to do this? Are they your own pages? – ChrisF Oct 5 '11 at 12:44
Yes, they are my pages. Does it make any difference? – thomas Oct 5 '11 at 12:46
Yes - you should spell check the content in what ever program you are using to create the web pages. – ChrisF Oct 5 '11 at 12:47
I pull in content from a few different files to build up each web page. I'd like to do a check of the pages displayed to make sure I haven't missed anything. – thomas Oct 5 '11 at 12:52

3 Answers 3

Use the bookmarklet from how-to-spell-check-any-web-site-using-firefox

You can drag-n-drop the bookmarklet link on your bookmarks bar.
You may have to drag-select the content of your page to force refresh spell check on the website's content.

Works in Chrome.

share|improve this answer

(Not updated for newer versions of firefox)

share|improve this answer
This plugin is insanely slow for long content. – Calmarius Nov 23 '12 at 12:35

I can recommend SpellcheckEverything extension for Firefox. I’s very simple – it just forwards all the work to the spellchecker used for textareas in forms.

Inside, it works pretty much like this well-known bookmarklet:


From SpellcheckEverything @ Mozilla Addons, with typos fixed:

This add-on brings the body-tag of the current webpage into the contendEditable-mode. Thus the whole page will be treated as editable content and therefore the whole text will be spellchecked.

The add-on requires the Firefox-Spellcheck-Feature to be enabled. You will also need download the language files for the Firefox-Spellcheck-Feature.

This only applies to version 0.2 which is available by clicking on "Versions" before it will get reviewed: A "SpellCheck" button will appear in the statusbar. A click on that button will enable SpellcheckEverything and indicate the status by changing its color to green. Turn it off by a second click on that button.

Kudos to How can you check spelling on an existing webpage? @ Mozilla Support. Without that Q&A, I would miss this addon.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.