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NEW
Windows: Firefox is now easier to update with one less prompt (User Account Control)
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NEW
Page Source now has line numbers
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CHANGED
Line breaks are now supported in the title attribute
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CHANGED
Improvements to "Find in Page" to center search result
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CHANGED
URLs pasted into the download manager window are now automatically downloaded
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DEVELOPER
The column-fill CSS property has been implemented
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DEVELOPER
Support for the text-align-last CSS property has been added
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DEVELOPER
Experimental support for ECMAScript 6 Map and Set objects has been implemented
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FIXED
OS X: WebGL performance may be degraded on some hardware (713305)
What’s New
Known Issues
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Unresolved
If you try to start Firefox using a locked profile, it will crash (see 573369)
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Unresolved
For some users, scrolling in the main GMail window will be slower than usual (see 579260)
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Unresolved
Some synaptic touch pads are unable to vertical scroll (see 622410)
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Unresolved
Windows: The use of Microsoft's System Restore functionality shortly after updating Firefox may prevent future updates (see 730285)