No connection to any sites in Firefox

RE: SevenForums and https connection see:

It's not supported.

More ideas:

Visit this link and posts any poor results - although you might not be able to connect with the problem you have.

https://www.howsmyssl.com/

Aslo get Certificate Store Checker from here:

https://www.trustprobe.com/fs1/apps.html

Extract the file into a folder on your desktop and run it. Post a screenshot of any suspicious certificates.

If the above version doesn't work get the real time certificate store monitor from this link:

http://trax.x10.mx/files/trustmonitor.zip

Do the same as before and run it. Click the system tray icon for scan options. When finished post any suspicious certificates and also exit the application.

EDIT:

Also type about:config in Firefox address bar and press Enter

Accept the warning. In the search box type security.ssl then press Enter

Note your current settings then try these if yours are different.

Callender said:

Question: What is your Antivirus? Some are known to use their own certificates for SSL scanning and could possibly cause that error.

Second question: Your screenshot

Attachment 390685

shows a secure connection to sevenforums (https) but sevenforums only uses http. So obviously the connection won't work.

Suggest: Launch Firefox and type about:support in the address bar then press [B]Enter[B]

In the window that opens choose "Copy text to clipboard" and paste the results here.

Good catch!
I think you might be on to something...

MM

RE: Your screenshot.

How many tabs were open? Did you connect to or try to connect to SevenForums? Same question goes for mygreatcall dot com.

Okay let's rule out Norton. Try downloading a Firefox variant - Cyberfox Portable version

Cyberfox Portable Download

Get the AMD version from the choice of downloads.

Save to your desktop

Create a folder to install the Portable version of Cyberfox. You decide where to create the folder. For test purposes you could just use a new folder on your desktop.

Run the setup file and choose the folder - when finished open that folder and launch Cyberfox. Try browsing and see if you get the same problem. Report results back here. If it works we can say that the problem is with Firefox and not your Antivirus or Windows.

RE: Other instructions. If you don't understand them don't worry. Maybe it will need to be a slow step by step explanation,

RE: Firefox. When was the last time you updated it and which version is installed.

Step by step instructions on how to find out:

Launch Firefox. Then you need to enable Menu Bar (if not already enabled)

Right click on the blue part of the screen and ensure that "Menu Bar" is ticked.

Then click "Help" and from the dropdown list that appears click "About Firefox!

A window will open that states which version is installed. Write the number down and let us know what it is.

If you see any messages about Fireox updates or downloading updates let it complete.

Cheers.

Some research indicates that the problem could be down to a faulty search engine or autocomplete settings when typring URL's into the address bar. Also on my own machine use of a browser based proxy can cause when switching between search engines.

Still need to know if you have the current up to date version of Firefox.

In the meantime try a different search engine temporarily.