Reply #12: The "add-on" issue is an easy fix without hacking XML files...

[Earth Bound Misfit]

https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-reporter/?src=api

About this Add-on

After installing the Add-on Compatibility Reporter, your incompatible extensions will become enabled for you to test whether they still work with the version of Firefox or Thunderbird that you're using. If you notice that one of your add-ons doesn't seem to be working the same way it did in previous versions of the application, just open the Add-ons Manager and click Compatibility next to that add-on to send a report to Mozilla.

Even if your add-ons all work fine, if they're marked incompatible, please let us know that they work fine by submitting a success report so we can encourage the add-on developer to update their compatibility information.

I've been using this add-on since ver 3.6.4 & I haven't come across an add-on yet that was *actually* incompatible thru ver 7...7 seem to have *fixed* the memory leak issue, at least as far as I've observed.

I like it. YMMV.