Open
Bug 1346756
Opened 8 years ago
Updated 2 years ago
CSS class in option ignored
Categories
(Core :: CSS Parsing and Computation, defect, P3)
Tracking
()
UNCONFIRMED
People
(Reporter: lgeisler, Unassigned)
Details
User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:51.0) Gecko/20100101 Firefox/51.0
Build ID: 20170125094131
Steps to reproduce:
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Test</title>
<style>
.red {
color: red;
}
</style>
</head>
<body>
<select>
<option>Item1 black</option>
<option class="red">Item2 red</option>
</select>
</body>
</html>
Actual results:
Item2 red is not red, CSS is ignored, reported by customer in WIN 10 Home, FF 51 and 52 64 bit.
I was not able to reproduce this problem in WIN 7, FF 51 64 bit, neither in MSEdge - Win 10 preview (64 bit) with FF 51/52.
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Updated•8 years ago
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Group: core-security
I have found the exact reason of this behaviour. It depends on the multiprocess windows setings:
I was able to reproduce it:
css style works when:
about:support states Multiprocess Windows: 0/1 (Disabled by add-ons)
css style doesn't work after switching extensions.e10sBlockedByAddons to false (about:config)
about:support states Multiprocess Windows: 1/1 (Enabled by user)
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Updated•8 years ago
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Priority: -- → P3
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Updated•2 years ago
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Severity: normal → S3
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Description
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