This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

firefox won't connect to Trello

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

needsleep
needsleep
more options

Suddenly, I can't connect to Trello. I'm on Win 7. I've restarted Firefox in Safe Mode. Still won't connect.

But when I start a new private window, it connects just fine!

What else can I try, to restore connections with Trello in non-private mode? Thanks.

Suddenly, I can't connect to Trello. I'm on Win 7. I've restarted Firefox in Safe Mode. Still won't connect. But when I start a new private window, it connects just fine! What else can I try, to restore connections with Trello in non-private mode? Thanks.

All Replies (2)

FredMcD
FredMcD
more options

needsleep said
But when I start a new private window, it connects just fine!

In the current Firefox, add-ons are not active in Private Browsing unless you set it that way.


It could be the work of one of your add-ons, or it could be Hardware Acceleration. How to disable Hardware Acceleration {web link}

Type about:addons<enter> in the address bar to open your Add-ons Manager. Hot key; <Control> (Mac=<Command>) <Shift> A)

In the Add-ons Manager, on the left, select Extensions. Disable a few add-ons, then Restart Firefox.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All Of them.

If the problem continues, disable some more (restarting FF). Continue until the problem is gone. After, you know what group is causing the issue. Re-enable the last group ONE AT A TIME (restarting FF) until the problem returns.

Once you think you found the problem, disable that and re-enable all the others, then restart again. Let us know who the suspect is, detective.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

This issue can be caused by corrupted cookies or blocked cookies.

  • check the permissions for the domain in the currently selected tab in "Tools -> Page Info -> Permissions"

Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Remove the Cookies" for websites that cause problems:

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Clear Data -> Cached Web Content: Clear