Spell checkers think the 'Internet' is important

My IE8 & FF spell checkers want to capitalize the word 'internet'.
Is it really treated as a proper noun?
Is it really treated as a proper noun?
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=25&t=76223
The term the Internet, when referring to the Internet, has traditionally been treated as a proper noun and written with an initial capital letter. There is a trend to regard it as a generic term or common noun and thus write it as "the internet", without the capital.
If in doubt, I capitalise, (without a "z")......!
Paul...My Firefox English Dictionary still insists on using American Spelling!......!
Paul...My Firefox English Dictionary still insists on using American Spelling!... >:(...!
If in doubt, I capitalise, (without a "z")......!
Paul...My Firefox English Dictionary still insists on using American Spelling!......!
If in doubt, I capitalise, (without a "z")......!
Paul...My Firefox English Dictionary still insists on using American Spelling!......!
Firefox Extensions: British English Dictionary 1.19
..plus a few other tools..
Paul......!
The online Dictionary ensures that I am not a complete Pratt...(and Pratt must be "spelled" with a capital "P"..it says)......!