User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

I tried to access he accessibility tools in the developer tools.

Actual results:

The accessibility tool is disabled and can not be enabled.

Expected results:

I expected the tool to be usable, since it worked in the version before too.

(In reply to andi.lenhardt from comment #0)

The accessibility tool is disabled and can not be enabled.

Enter about:config into the address bar and check the value of the accessibility.force_disabled preference. If it's set to 1, click the Reset button on the right side and restart Firefox.

(In reply to Gingerbread Man from comment #1)

Enter about:config into the address bar and check the value of the accessibility.force_disabled preference. If it's set to 1, click the Reset button on the right side and restart Firefox.

Thanks, that worked.
Why was this tool disabled? I didn't read any information on this in the release notes, did I miss something?
The picture says the tool can be enabled in the settings but it can not. This is very missleading in my opinion.

(In reply to andi.lenhardt from comment #2)

Thanks, that worked.

You're welcome.

Why was this tool disabled?

Other than the user manually enabling the setting, I don't know.

The picture says the tool can be enabled in the settings but it can not. This is very missleading in my opinion.

Bug 1639921 will probably address this. There was a setting called "Prevent accessibility services from accessing your browser" in the Options tab, Privacy section. It was removed in bug 1613468. Anyone who previously enabled the option would then have a hidden setting they don't know how to modify.

Thanks all for filing/comments/feedback. Wording of the a11y panel landing page must be updated to reflect that we no longer have access to enabling/disabling accessibility service in about:preferences and instead must do it in the about:config.