[tor-bugs] #5744 [TorBrowserButton]: TBB-Firefox allows style change on mouseover (JS disabled)

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#5744: TBB-Firefox allows style change on mouseover (JS disabled)
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 Reporter:  rransom           |          Owner:  mikeperry
     Type:  defect            |         Status:  new      
 Priority:  normal            |      Milestone:           
Component:  TorBrowserButton  |        Version:           
 Keywords:                    |         Parent:           
   Points:                    |   Actualpoints:           
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 The download buttons in section 2 of
 [https://tails.boum.org/download/index.en.html] change their text font
 once when the mouse is moved over them.

 I currently have JS disabled by NoScript (by clicking the ‘Forbid Scripts
 Globally’ option), so this is a change caused by CSS only.  I don't know
 whether that's considered harmful, but I suspect that it is.

 The buttons keep their new font until the page is refreshed; then they
 return to their original font, and change to the (same) new font when
 mouseovered again.  The two fonts have different metrics, and the buttons'
 sizes change.

 (using TBB-Firefox in TBB `2.2.35-10-Linux-x86_64`, based on Firefox 12.0
 and Torbutton 1.4.5.1)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5744>
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