Firefox Support Forum

Starting yesterday firefox, no recent updates etc, gives a 403 error for several large corporate sites and 404 page not found for most paypal payment pages. These sites/pages work fine with Chrome. There were no changes by by myself to my firefox installation, not any antivirus changes.

Within the last hour today everything is working properly. What is going on? jn

Firefox View Open Tabs is my favorite feature. I (used to) use it daily, but now, even though I have NUMEROUS windows (over 40) and multiple tabs in many of those windows, View Open Tabs is completely empty. I'd very much like to restore that 'index' without losing all those pages/tabs (it's my reading & ToDo list).

Sometime recently, I found it using gobs of CPU even though Javascript was (and still is) disabled, so I found the top CPU process and killed it. Instead of a single page going blank, Firefox crashed. Sometime after that I noticed that View Open Tabs was no longer populating. Maybe that contributed or instigated the dysfunction?

Why is Firefox autofilling the address bar with URLS I've never visited? There is a question on this from 5 years ago, with lots of suggestions. My problem is that Firefox is autofilling with sites that contain confidential login information.