Hey, I believe this problem is part of a bigger problem. I have tried suggestions in https://support.mozilla.org/en-US/questions/989230 to the letter and yet nothing can fix it. For those that doesnt want to click the link or copy-paste it. The problem is this: Upon startup, Firefox opens automatically to my homepage. This happens recently ever since Windows 8.1 Update on 15th July, 2014. What also happens during the update is that my ultrabook that supposed to have instant-on feature nwo seems to be ultra-slow on startup and extremely slow when shutting down. No programs have been installed other than the 8.1 patch update and the only different before and after the update is that now Firefox start up instantly. Solutions that I have tried: 1) Task Manager > Startup > Wanting to simply untick Firefox to startup but no Firefox is there 2) Open CCleaner > Startup > Still no Firefox on it 3) Searched msconfig > startup >goes to task manager > repeat step 1 4) Went on http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx on the top link for windows startup > No Firefox detected whatsoever, 4-5 Yellow entry and 1 red 4a) Have no clue what these means, what i notice is that the yellow couldnt locate the file and the red is just there not doing anything i presume. These are the four steps I tried to no avail and I am becoming highly confident that Firefox autostart is causing my laptop to start up slower than my windows 95 pentium 4 computer i have at the corner of my room. Any suggestions other than the ones I tried would be welcome.