Windows 10: Firefox Slower to Launch in Windows 10

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  1.    10 Apr 2018 #61

    Callender said: View Post
    I'm going to take a guess and suggest switching DNS lookup:

    Do you also happen to make use of a large HOSTS file?

    Reason for asking: Edge will require DNS Client Service to be running but for other browsers there will be a slowdown if the service is enabled when using a large HOSTS file.

    You could still post the info requested here:
    Tried reverting back to the original hosts file. Had no effect.
      My ComputerSystem Spec

  2.    10 Apr 2018 #62

    I just scrolled back through the thread reading, have you tried this without Bitdefender protection? I am sorry if I missed it. I saw BD in one of the logs you posted.
      My ComputerSystem Spec

  3.    10 Apr 2018 #63

    Access Denied said: View Post
    I just scrolled back through the thread reading, have you tried this without Bitdefender protection? I am sorry if I missed it. I saw BD in one of the logs you posted.
    Yes, that was the first thing I tried. I have mentioned that in the thread before.
      My ComputerSystem Spec

  4.    10 Apr 2018 #64

    I tried with Windows in safe mode and the launch time was noticeably faster in that.
      My ComputerSystem Spec

  5.    10 Apr 2018 #65

    Lagnaetti said: View Post
    Tried reverting back to the original hosts file. Had no effect.
    Okay thanks for posting about:support info. I can't see any issues there.

    I am also starting to think that security software might be a factor. Do you have Windows Defender enabled? If so try turning it off.

    Turn On or Off Windows Defender in Windows 10 Windows 10 Tutorials

    Did you try this? It's portable so runs without installation.

      My ComputerSystem Spec

  6.    10 Apr 2018 #66

    Lagnaetti said: View Post
    I tried with Windows in safe mode and the launch time was noticeably faster in that.
    You mean Windows Safe Mode or Firefox Safe Mode?

    Try the Windows Defender thing if you use Defender alongside your AV.

    Other than that try a clean boot:

    Perform a Clean Boot in Windows 10 to Troubleshoot Software Conflicts Windows 10 Tutorials

    It's a bit of a long winded hit and miss way to try to find a possible culprit.
      My ComputerSystem Spec

  7.    10 Apr 2018 #67

    Callender said: View Post
    Okay thanks for posting about:support info. I can't see any issues there.

    I am also starting to think that security software might be a factor. Do you have Windows Defender enabled? If so try turning it off.

    Turn On or Off Windows Defender in Windows 10 Windows 10 Tutorials

    Did you try this? It's portable so runs without installation.
    Bitdefender turns off Windows Defender when it installs.

    Speedyfox didn't help.
      My ComputerSystem Spec

  8.    10 Apr 2018 #68

    Callender said: View Post
    You mean Windows Safe Mode or Firefox Safe Mode?

    Try the Windows Defender thing if you use Defender alongside your AV.

    Other than that try a clean boot:

    Perform a Clean Boot in Windows 10 to Troubleshoot Software Conflicts Windows 10 Tutorials

    It's a bit of a long winded hit and miss way to try to find a possible culprit.
    Windows.

    Clean boot didn't make any difference.
    I believe the difference between a clean boot and safe mode is that clean boot loads some non essential drivers like graphics cards and stuff. And since there was a change when I booted windows in safe mode, I'm assuming that it might be an issue with one of these drivers. Correct me if I'm wrong.
      My ComputerSystem Spec

  9.    10 Apr 2018 #69

    Well it could be drivers but just as equally it could be some other non windows software or service that doesn't run in safe mode.

    Related post:

    Stop windows defender so I can install bitdefender Solved - Windows 10 Forums

    It's not a solution but you might find this useful. I just tried and tested this:

    It sits in the system tray and pre-loads some files that Firefox needs. You then launch firefox from the system tray icon. It does launch faster for me.

    I guess that you will have to check for updates for all software that runs on boot and install if updates are found.

    Try Autoruns to get a list of stuff to investigate:

    Autoruns for Windows - Windows Sysinternals | Microsoft Docs

    Note: Don't be tempted to fix "file not found" errors in AutoRuns since it cannot always parse (read) every file.
      My ComputerSystem Spec

  10.    10 Apr 2018 #70

    Will check this thread tomorrow.
      My ComputerSystem Spec


 
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