Firefox very slow to start

Hi Kishore and thanks for getting back to me.
I have AVG Internet Security 2015, version details below.
I disabled AVG, restarted the laptop and Firefox started almost instantly.  My version of Firefox is up to date as of this morning.
What do you suggest next please?
Cheers
KevinUser-added image

Kevin, Please follow these steps to send us diagnostic information from your computer. This information will allow us to analyze the situation and provide you with solution:

Click on this link http://www.avg.com/filedir/util/AVG_SysInfo.exe to download the AVG SysInfo tool.
Run the downloaded tool.
Click Accept to confirm the license agreement, and then click Continue.
Once the screen Output created is shown, fill in any additional details, or click Attach if you want to attach any additional files, such as screenshots.
Click Send, fill in your email address, and then click Send again.
We will analyze the received files and provide you with further information.

Kevin, thank you for the information. I would request you to disable the individual components of AVG to check which particular component is causing Firefox to run slow. To disable individual components, please check this article http://avgclick.me/DisableComponents .

I've seen lots of artciles on line talking abouit how AVG can prevent Firefox from opening in a reasonable time becasue it scans various files first… I'm waiting a couple of minutes for Firefox to actually open and wondered if anyone knows a solution, please?  Mozilla help say it's something inside AVG settings but I don't know what to change… :-?
Thanks
KB

Kevin, thank you for the information. I would request you to disable the individual components of AVG to check which particular component is causing Firefox to run slow. To disable individual components, please check this article http://avgclick.me/DisableComponents .

Hi Kishore and thanks for getting back to me.
I have AVG Internet Security 2015, version details below.
I disabled AVG, restarted the laptop and Firefox started almost instantly.  My version of Firefox is up to date as of this morning.
What do you suggest next please?
Cheers
KevinUser-added image