I was having Firefox (slow) performance issues and decided to re-install. After re-installation, firefox would not start (could see the process firing but closing immeadi… (læs mere)
I was having Firefox (slow) performance issues and decided to re-install. After re-installation, firefox would not start (could see the process firing but closing immeadiatey, the app didnt even open). Upon advice received here (, installed an earlier version (54) of firefox which started. Then I did all the updates to recent versions and it kept working. Only then I realized I had just installed the 32-bit version. As I try to use the same procedure to install the 64-bit version, I am back to the same problem (firefox not starting). Now I found that I can get firefox to start by renaming the firefox.exe to something else (e.g. firefox1.exe). It does start but it seems the intial performance problems persist. Additionally, it keeps asking me if I want to make Firefox my default browser. I keep answering yes to no effect as every time I start firefox it asks me the same thing. If I try to make Firefox my default browser through windows settings (or control panel) firefox is not listed by windows as an installed application. In short, I cannot get the 64-bit installation being recognized by windows (windows 10 home) and without renaming the exe file. In addition It seems to perform poorly.
I have also checked for malware, nothing detected.