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Firefox incorrectly loads button icons on Java or Flash based sites, sometimes images are missing.

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cor-el replied
limlight
limlight

Firefox incorrectly loads button icons on certain sites, sometimes images are missing. See provided screenshots. No issues on same pc with any other browser tested, IE and Chrome. Any ideas, please? Fonts options are checked and disabling possible blocking add-ons like Adblock plus, changes nothin,g.

Firefox incorrectly loads button icons on certain sites, sometimes images are missing. See provided screenshots. No issues on same pc with any other browser tested, IE and Chrome. Any ideas, please? Fonts options are checked and disabling possible blocking add-ons like Adblock plus, changes nothin,g.
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cor-el
cor-el
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You can check for problems with preferences.

Delete possible user.js and numbered prefs-##.js files and rename (or delete) the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in current Firefox releases.