How to Fix Memory Leaks in Firefox 3.6.3
Some versions of Mozilla Firefox 3.6, such as 3.6.3, can experience memory leaks. When an application suffers from a memory leak, it allocates more and more available memory over time but fails to release memory it no longer needs. Memory leaks reduce the amount of memory the computer has to work with, causing the PC to run slowly or freeze.
If you notice Firefox 3.6.3 using more and more memory, but you have few tabs open and aren't accessing a Flash-based website, restarting the browser is the best option to stop the memory leak. You can also fix the leak when the program is minimized by changing the program's configuration.
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Instructions
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About:Config
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Open Mozilla Firefox 3.6.3. Input "about:config" into the address bar. Press "Enter."
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Click "I'll Be Careful, I Promise!" to continue. Input "trim" into the filter bar.
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Locate "config.trim_on_minimize" in the list below. Double-click the item to change it from "False" to "True."
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Restart the browser. Firefox 3.6.3 will be moved to the hard drive when minimized, reducing the amount of memory it consumes when not in use.
Task Manager
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Hold down "Ctrl," "Shift" and "Esc" to launch Windows Task Manager. Go to the "Processes" tab.
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Click "Image Name" to alphabetize the list of applications. Go to "firefox.exe."
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Right-click the process. Select "End Process Tree" from the context menu. Click "End Process" on the dialog box to force Firefox 3.6.3 to close.
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Restart Firefox. Click "Restore" to restore the last session. Keep the "Processes" screen open and check the "Memory" section every one to two hours to make sure a memory leak is not occurring.
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