What is the file deleted the files in the main folder, and can / should I remove it?

What is the file deleted the files in the main folder, and can / should I remove it? Is it too much room, I could use?

This file stores a list of files from previous version of Firefox that are no longer needed or supported in the current version of Firefox. This file is only a few KB and it is best not to delete files in the Firefox program folder to avoid update problems. If the required files are missing or modified with a update Firefox will download the full version (approximately 10 MB) instead of a small incremental update which is usually only a few hundred KB.

Tags: Firefox

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