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Need help using Firefox Developer tool

Posted on 2014-04-07
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Last Modified: 2014-04-07
Hi,
I can't seem to find a good tutorial online for this.  I created a html page that when preview (on my hard drive), in FF, I get a red box of "1" on the right end above the windows status bar.  When I hoover over it, tooltip says "1 error 2 warnings, click to toggle the developer tools".  
I click on it and it changes scrren, please see attached.  It hightlights Style Edior but I don't see where is the error or warning or related messages.  
Appreciate someone can point me to how to get to the errors or a good tutorial for the dev tool, thank you.
DevToolErr.jpg
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Question by:lapucca
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duncanb7 earned 500 total points
ID: 39983793
There is Console button (at the left of the image,DevToolErr.jpg). Do you see it ?

Just click it and you will see all error and warning

Duncan
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by:duncanb7
ID: 39983943
Thanks for your pt

Have a nice day

Duncan
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Author Closing Comment

by:lapucca
ID: 39983937
Works!  Thank you.
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