firefox.exe is a application which is probably legit. So, if firefox.exe is on your system, it is probably ok, and will NOT cause problems. Even if your PC is virus-free, it is still recommended to purchase a well-known antivirus with a good detection rate, in order to defend yourself against viruses and malware.
This application is usually found in C:\Program Files (x86)\Mozilla Firefox\firefox.exe.
The MD5 fingerprint for this file is 594f91c5985ac402ecd2d7f1376afffd.
This application does NOT run as a Windows service. This is usually a good sign.
This application uses the Internet to communicate. Today this is expected from a program. For example, most of the apps on your computer check for updates. For this, Internet communications are necessary.
This application runs in 32-bit mode. It does not use the entire power of current computer CPUs. This ordinarily happens because the authors did not upgrade it to 64-bit code.
The description extracted from the program is Firefox.
File version 54.0.1.
Company Mozilla Corporation.
Intellectual property rights notice ©Firefox and Mozilla Developers; available under the MPL 2 license..
firefox.exe appears to have a visible user interface. This is good because it doesn't operate in some kind of stealth mode. Its activity is clearly shown to you.
Some unusual features of Windows have been used, such as functions for recording the keyboard. We recommend you to read more about this program.
firefox.exe has a digital signature. Today the large majority of legit programs are digitally signed.
The digital signature found in firefox.exe is valid. This is excellent.
Digital certificate name: Mozilla Corporation
Certificate's issuer name: DigiCert SHA2 Assured ID Code Signing CA
It has an uninstall routine, which is good. si are uninstall.