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Firefox error

  • 4 回覆
  • 0 有這個問題
  • 22 次檢視
  • 最近回覆由 zeroknight

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Can't login to tv.verizon.com. Entering login info produces the message: Object reference not set to an instance of an object. Trying the same login with Chrome works fine.

Should I be going back to using Chrome again?

Can't login to tv.verizon.com. Entering login info produces the message: Object reference not set to an instance of an object. Trying the same login with Chrome works fine. Should I be going back to using Chrome again?

所有回覆 (4)

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If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin), always make sure such extensions do not block content.


You can try these steps in case of issues with webpages:

You can reload webpage(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • hold down the Shift key and left-click the Reload button
  • press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • press "Command + Shift + R" (Mac)

Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Settings), click the padlock icon (Clear cookies and site data) for the domain in the selected tab.

"Remove the Cookies" for websites that cause problems:

  • Settings -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Settings -> Privacy & Security
    Cookies and Site Data -> Clear Data -> [X] Cached Web Content -> Clear

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window

You can check for issues with Enhanced Tracking Protection. Firefox shows a purple shield instead of a gray shield at the left end of the location/address bar in case Enhanced Tracking Protection is blocking content.

  • click the shield icon for more detail and possibly disable the protection

You can check the Web Console for relevant-looking messages like blocked content.

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Thanks, I guess.

However, if I need to go through the tedium of checking all those possible solutions it will obviously be easier to just go back to Chrome.

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You need at least check the "Clear history when Firefox closes" settings to see whether you can clearing the cookies.

Are you using extensions that deal with cookies and might be clearing session ID cookies?

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Does it still happen in Troubleshoot Mode?