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AVG keeps warning me that Firefox is using alot of RAM, It's saying it's using over 330 megabytes and I should close & reopen Firefox. Is over 300 megabytes too much? Does it indicate a problem somewhere?

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AVG will pop up a message that Firefox is using an excessive amount of RAM and I should close it & reopen to lower RAM usage. How much is too much? Is something going on in the background that shouldn't be?

AVG will pop up a message that Firefox is using an excessive amount of RAM and I should close it & reopen to lower RAM usage. How much is too much? Is something going on in the background that shouldn't be?

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How much RAM do you have?

300MB is a lot if you only have 512MB, but not too much if you have 1 or 2 GB, or more.

http://blogs.avg.com/community/avg-feedback-update-week-44/

See - 3. AVG Advisor = Disable AVG Advisor performance notifications
or try using the "Change when these notifications appear" and set a higher threshhold