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During browsing when I click an element
<body>
changes to
<body class="xyz">
Is it possible to remove this class dynamically using uBlock Origin? Expected behavior: when I click this element, <body> does not change.
remove-attr.js (suggested by this answer) does not work because class "xyz" is not present at the time when the page is loaded.
905
asked Mar 22 '26 07:03
For those looking to remove the class on pageload, you can now use the :remove-class(class) action operator in uBlock. There is also :remove-attr(attr) as well.
www.example.com##body:remove-class(xyz)
Wiki article: https://github.com/gorhill/uBlock/wiki/Static-filter-syntax#subjectremove-attrarg-subjectremove-classarg
If the class only appears later (e.g. dynamically on click), try prepending with the watch-attr(arg) filter:
www.example.com##body:watch-attr(class):remove-class(xyz)
Wiki article: https://github.com/gorhill/uBlock/wiki/Procedural-cosmetic-filters#subjectwatch-attrarg
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