Hi Martin, WOW! Thanks a million! I NEEDED a "new tab" key on the left near my other toolbar features!...it was way past the "want" stage after only a week of being a newly upgraded iMac El Capitan 2015 owner. My last computer is a beautiful (yet now ancient 2006 iMac with original 10.4.11 OS Tiger) "paperweight" that I miss more than words can be typed...I can NOT believe that I was totally clueless what an "extension" even is...but I was about to go berserk from having to scroll ALL the way to the right of the top toolbar to click on that default "new tab" [+] symbol EVERY time I wanted a new tab page to open...
So....I googled the issue and was SO AMAZED that JUST by reading YOUR post...I could click on the link to create and use your CUSTOM extension and VOILA! I SOLVED IT! I'm seriously blown away happy and impressed that a near total novice like me could use your incredible creation SO easily and quickly! I'm going to enjoy searching this Apple Support pages more from now ON! 🙂 Extra Q's:
1.) Have you got any other "magical" equations/and or quicker click # "work-arounds" to give us BACK our "right click" delete key (from the standard size keyboards) that's ALSO MISSING on the slick and speedy "wireless Magic Keyboard? [have been using the fn + delete key method which is 2 clicks too many!]
2.) ALSO, the wireless Magic Mouse is NOT correlating to where I want it to be as a cursor arrow and I find I need to click many times to get the correct action accomplished..is THAT a "settings" issue???
3.) How can turn OFF the auto-correct typing feature in gmail and Facebook chat?