Black and white spots
I have a strange problem. It is best described by the attached picture. These spots appear only in Mozilla, nowhere else. They come in many situations, for example when I change a tab, or maximise mozilla or try to type the website. Possibility that they come is like 30% on every click.
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Picture
Hi, please update your Shockwave to Version 12.2.9.199 from 12.2.8.198 https://get.adobe.com/shockwave/ Update your Flash https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only> Check other plug-ins here : https://www.mozilla.org/en-US/plugincheck/ Prob need to update your VLC also a pull down on the button to download gives choice of 32 or 64bit https://www.videolan.org/vlc/ version 226 is latest. A new version of Java was released last week http://java.com
Clear your cash, temp folders and cookies if can afford to loose them all. Then see who it runs.
Previous solutions have been to : https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems
Since plug-ins are out of date : https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration You can try to disable hardware acceleration in Firefox.
Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
Please let us know if this solved your issue or if need further assistance.
Note that this is likely a problem with hardware acceleration.