受信メール一覧のフォントサイズの変更

#threadTree
{
  font-size: 12pt !important;
}

''<p>u07578 [[#question-1341906|said]]</p>'' <blockquote>I want to know how to change the font size in the list of incoming messages. </blockquote> This can be done with a userChrome.css file with this code: <pre> #threadTree { font-size: 12pt !important; }</pre> Help/Troubleshooting, Profile Folder, Open Folder, close TB, create a new folder named chrome, create a new document in chrome with a text editor, name it userChrome.css, Save as type: All files *.*, copy in the above code, change the number as desired. Double-click ''toolkit.legacyUserProfileCustomizations.stylesheets'' to true in Options/General/Config. editor, restart TB.