I need to use "Accessibility Extension". When I try to download it I'm told it doesn't work on 5.0.
Accessibility Extension - The tool supports people with disabilities and web developers in navigating, styling and accessing text equivalents that are useful to people with disabilities. Developers can use the tool to test their web resources for functional accessibility features. It is an add-on tool that doesn't work on 5.0. I need to get back to 4.0.1.
Alle svar (1)
That problem has been reported as a Bug to the developer of that extension.
http://code.google.com/p/accessext/issues/detail?id=7
You can try using the Add-on Compatibility Reporter to "override compatibility" and see if that extension still works in 5.0. If so, report it as such using that feature in ACR,
https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-reporter/