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about:blank not rendering

  • 2 replies
  • 1 has this problem
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  • Last reply by mifinti

mifinti
mifinti
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As far as I can tell, Firefox is not rendering about:blank under certain conditions.

I am using "chrome\userContent.css" to customize about:blank, but sometimes Firefox is producing a blank white screen instead.

When opening a new window and sometimes when a new tab is created by closing the last one in a window, this style is not applied. "Tools > Page Info" confirms that the unstyled page is indeed about:blank. Also opening the developer tools to the "Style Editor" or viewing the page source will fix the issue.

As far as I can tell, Firefox is not rendering about:blank under certain conditions. I am using "chrome\userContent.css" to customize about:blank, but sometimes Firefox is producing a blank white screen instead. When opening a new window and sometimes when a new tab is created by closing the last one in a window, this style is not applied. "Tools > Page Info" confirms that the unstyled page is indeed about:blank. Also opening the developer tools to the "Style Editor" or viewing the page source will fix the issue.

All Replies (2)

mifinti
mifinti Question owner
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Some additional weirdness, if I point the homepage at an HTML file that contains a <meta http-equiv="refresh" content="0;url=about:blank">. It exhibits the same issue; sometimes about:blank renders without respect to the userContent.css. However if I change that to refresh after 1 second delay, the always renders correctly.

mifinti
mifinti Question owner
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This appears to be a known bug (#1422507) since v57.