[Bug 353877]

[Ernestcline]

I can see closing the parts relating to character alignment as WONTFIX.
Those are explicitly stated as optional in the HTML4 spec and they would
definitely impact performance, especially when the engine has to
calculate the character offset.  The other attributes only require
column inheritance of properties.  That was fairly simple in the pre-CSS
pre-DOM days as the user agent could know which column a cell was in and
always would be.  The former is still true and I doubt that there would
be many cases where these attributes would be used where DOM
manipulations would be done.

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https://bugs.launchpad.net/bugs/353877

Title:
  FF doesn't render the properties and the styles of <COL> tags

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