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firefox error code - firefox won't open at all

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Judith Dower

Judith Dower

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The instruction at “0x00000000” referenced memory at “0x00000000”. The memory could not be “read”. Click on OK to terminate the program.

Suddenly got this error message when I tried to open Firefox. As far as I know, nothing has changed since the day before. Have tried uninstalling and reinstalling (completely) and system restore, but no joy.
IE works ok, as does Google Chrome (although GC has a few other bugs in), but I really prefer Firefox.
Any ideas?
I'm using Windows XP, service pack 3.
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Hello Judith Dower ...

Does the Safe Mode version work?

The Safe Mode version can be accessed through the Start menu......Start > All Programs > Mozilla Firefox > Mozilla Firefox (Safe Mode). If Firefox will open the Safe Mode version, the problem will likely be with an add-on.

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