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Travis
Travis, Mac-Trained Product Designer
Category: Mac
Satisfied Customers: 759
Experience:  19+ Years of Mac Experience, BSA in Design and 6 Years of Mac Training from University of Cincinnati
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Whenevever I click the Firefox icon, a pop-up says a copy

Customer Question

Whenevever I click the Firefox icon, a pop-up says "a copy of Firefox is already open. Only one copy of Firefox can be open at a time," and it won't access the site; if I try to re- download Firefox, it fails with the reason "codec" or else "no file available" Help!! What can I do to actually access Firefox/
Submitted: 7 years ago.
Category: Mac
Expert:  Travis replied 7 years ago.
If the following suggestions work, please let me know and you can Accept the answer (and if possible, leave positive feedback). If not, please DO NOT Accept the answer. Instead, let me know and we'll try some more things or I can refer you to another Expert who may be able to help you further.

First of all, I would suggest you run some general maintenance on the computer. It is an obvious square-one approach. I normally suggest this first because it is good practice plus if we dig too deep into a problem and simple measures could have repaired it in the beginning we'll be kicking ourselves later... This is going to be a long post so I suggest printing it out for your reference.

First let's reset the PRAM on the computer.
1) Shut down the computer.
2) While the computer is shut down, locate these keys: command (has an apple on it), option (sometimes called alt), P, and R.
3) Turn the computer on, then press and hold Command-Option-P-R before the gray screen appears.
4) Hold these keys down until you hear the startup sound a total of 3 times.
5) Release the keys.

Next, let's try a Safe Boot. This will perform several clean up procedures that may be affecting the machine's performance and startup.
1) Shut down your computer completely.
2) Start up the computer and immediately after the startup chime, press and hold the Shift key
3) Once the gray Apple and progress indicator appear, release the Shift key
4) Note: Startup will likely take substantially longer than normal (20 - 30 minutes is not unheard of)
5) In Mac OS 10.4 or later, you will have to login to your account, even if it normally does so automatically.
6) Shut down the computer.

Now let's check / repair the disk permissions. Although this doesn't fix all problems it is a great way to start when working on a machine, besides it often cleans up any other smaller problems you may or may not be experiencing.
1) Restart the machine.
2) Before you have opened any programs, go to Applications / Utilities / Disk Utility.
3) Run the "Repair Permissions" after selecting your Hard Drive from the list on the left.
4) Shut down the computer.
5) Restart and try Firefox. If you are still having problems, please let me know and we'll continue to troubleshoot the issue.
Customer: replied 7 years ago.
I have an inoperable printer so I cannot print out the suggestions you listed.
Expert:  Travis replied 7 years ago.
Are you able to write them down or take notes? Definitely the best place to start for this issue.

I'll be around most of the afternoon and evening. Post any follow ups here and I'll respond ASAP.

I'm confident that together we can get this taken care of. Good Luck!

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