As another 1-star review stated, you collect and sell users' personal information, and yet you state that you thought you were being very up front, very clear about the fact that you do. Tell me then, on your MAIN PAGE in Mozilla Extensions, are you saying that you are being up front about it just because the LINK TO your license agreement is listed just above the following? "This extension does not capture any information or usage analytics at all."
Can you REALLY not see how people would be lulled into a false sense of security by the above-quoted statement? And please: DON'T come arguing semantics just because the word 'collect' is absent, when the word 'capture' in the quoted statement in question is used instead, because even a fool with only a rudimentary knowledge of the English language could catch that! I would ask what you would expect most people to think, but you will likely hide behind something to the effect of you not being able to help the person who is stupid enough to not read the terms of a semi-binding license agreement and that you have deceived no one in any way... technically.
And, in most cases, YES people should read license agreements but when you put 'This extension does not capture any information or usage analytics at all.' in the very next line just below the link to your agreement, well, let us just say that it IS most certainly more than enough to turn around and bite you and were it a more serious matter, while you certainly could win, there is more than a shadow of a doubt that you are being purposely deceptive.

Very useful tool to develop accessible websites

Seems to infinitely load on local websites with no hint what it's doing except saying "analyzing your page..."

Very useful accessibility testing tool. Unfortunately I've had to disable this add-on for now since I am getting constant error messages in my console from it: 'TypeError: URL constructor: undefined is not a valid URL.'

I assume this bug was caused by a recent update. Searched for a bug report link/form but none found so I'm posting this here instead.

FF 88.0b2 (64-bit)

Edit: The issue appears on just about every page load as far as I can tell. The only exception being pages on addons.mozilla.org, though I think addons might not be allowed to access pages on that subdomain(?). Even localhost pages cause the error message to appear - I originally thought it was an issue with my code.

The only thing I've found that makes the error message stop showing up is by disabling this addon. I tested this with all my other addons disabled. My current version is 4.8.4.

Great tool for easily identifying accessibility issues. It is a valuable resource for learning the related details and guidlines behind the highlighted issues. It is my go-to tool for developing inclusive applications.

Easily blows all other automated accessibility testing tools out of the water. Perfect tool to help developers and QA folks keep up with accessibility requirements. Love the integration with the dev tools, the links to free, contextualized helps guides and the fact that the entire axe-core engine is open-sourced.

This tool is something I use every day. Easy to use, clear and actionable reporting so that I know what's wrong, where it's wrong, and how to fix it. Keep it up Deque!

Great tool. Simple and clean UI with less distractions/noises. Missing sign in to axe Beta. The feature is only available on Chrome extension.

https://www.deque.com/privacy-policy/ They can share even your personal information with third-parties; take care of it!