1235540 - -Moz-Binding Unset/none dosen't work

Status: RESOLVED DUPLICATE of bug 119078

(Core :: XBL, defect)

Description

[Almog Guata]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36

Steps to reproduce:

1. Install adblock plus extension for firefox.
2. create a page with this HTML:
<div id="aaa" class="adUnit">aaaaaaaaaaaa</div>
3. now adblock plus will create a mozBinding to this className with a broken XML which will result in "display:none".
this is the css example:
.adUnit {-moz-binding: url("abp-elemhidehit?914416608504#dummy") }
this is abp-elemhidehit?914416608504#dummy source:
<bindings xmlns='http://www.mozilla.org/xbl'/>

the result is that the element is not displayed even if it sets to display block & visibility visible.

I've tried to override the -moz-binding with inline css (which should win) like this:
<div id="aaa" class="adUnit" style="-moz-binding: none !important">aaaaaaaaaaaa</div>
but it is not working.
if you will check:
document.querySelector('aaa').style.MozBinding you will see the 'none' string I've set.
but if you will check computedStyle, you will see Adblock Plus broken MozBinding.

Nevertheless, even If I will remove the "adUnit" class from the element ClassList (which is the reason for the MozBinding effect), It won't work, the element won't appear again, never.


Actual results:

Element is not displayed, And can't be redisplayed no matter what.


Expected results:

inline style -moz-binding should win the outline css created by adblock plus extension.

Comment 1

[Boris Zbarsky [:bzbarsky]]

> will create a mozBinding to this className with a broken XML

No, it creates the exact binding it means to: it's treating it as an ad and hiding it.  If you think it shouldn't, please do report a bug to adblock plus.

The rest is bug 119078 and is not likely to be fixed, for what it's worth.