Thunderbird Displaying Weird Characters Instead of UTF

If you see something like "fï¿œr" instead of "für" in Thunderbird, then try this:
Go to Options -> Advanced -> Config Editor (Accept Risk!).
Then search for "mail.strictly_mine" and double click on it to change from false to true.
That worked for me on newly received messages. The old ones still do not display correctly.

Disable Automatic Adaptative Brightness Control on Windows 10

The only thing that worked on my Dell Latitude to disable this quite annoying "feature" was going to Settings -> Power and Sleep Settings -> Additional Power Settings and choose the Balanced  plan.
You should also check that in the Advanced Power Settings -> Display -> Enable Adaptative Brightness is disabled.
Choosing a Power Plan kept this option enabled even with Enable Adaptative Brightness disabled.

Update. Sometimes this doesn't work. I found an additional setting to try:
Run regedit and go to:
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Intel\Display\igfxcui\profiles\Media\Brighten Movie and Darken Movie.
Then set ProcAmpBrithness to 0 (mine was respectively 30.00 and -30.00).
I'll let you know if it works...

Eclipse XML file Syntax colors

If you have an XML files that opens with unreadable colors but the XML colors are different, the reason could be that the file is not associated to the XML editor but some other (default) editor, like Ivy.
Either open the file with (Open with...) the XML editor or change the color scheme for the default editor.

Reopen Last Closed Window in Firefox

If you accidentally or voluntarily closed a window and now you want it back, once there was the history menu item...
With the latest versions, you can use: cltr-shift-n. This will reopen the last closed window.
Tested with Firefox 59.

Thanks to NB_FF.