New upgrade - missing icons/images - Preview button dead

[Tom.G]

I realized the icons are back after browsing the Electrical Engineering forum. Typically, I check my Alerts immediately after signing in and may respond to a few. That's when the icons are missing. Then to the EE forum. I responded to a few and realized the icons existed again. Will continue seeking correlations.

 

[Greg Bernhardt]

Yes, after bypassing a security warning of untrusted site. Three lines of comment and one very long line of text.

That might be the problem. Do you have custom security settings?

 

[Tom.G]

That might be the problem. Do you have custom security settings?

If you consider a pop-up for un-trusted certificates to be 'custom', then yes. Most often when they occur I do an accept-this-time and continue. I just did the accept-one-time for:
maxcdn.bootstrapcdn.com uses an invalid security certificate.

The certificate is not trusted because the issuer certificate is not trusted.

(Error code: sec_error_untrusted_issuer)

Then I came back to this thread and did a page refresh. The icons appeared. So you have found the (or a?) cause. Now the question is: Is it on my end so I must accept an untrusted certificate, on your end, or on bootstrapcdn.com; or some combination of them? At least there is now workaround!

 

[Greg Bernhardt]

Is it on my end so I must accept an untrusted certificate, on your end, or on bootstrapcdn.com; or some combination of them?

You should not accept untrusted certificates, however, it's showing as valid to me. What browser are you using?

 

[mfb]

Firefox 18.0.2.

That is from January 2013. I wouldn't expect a 5 year old browser to work properly with modern websites.

 

[Tom.G]

You should not accept untrusted certificates, however, it's showing as valid to me. What browser are you using?

Firefox 18.0.2. Yea, I know, it's old. To upgrade, must replace OS; then there is $X,XXX's of applications to be upgraded. Stuck!

Many sites have started using a later version of encryption (TLS 1.2?) than this browser supports (TLS 1.0), so that might be contributing; although the usual error I get is either no compatible encryption, can not connect, or connection interrupted.

 

[Greg Bernhardt]

Many sites have started using a later version of encryption (TLS 1.2?) than this browser supports (TLS 1.0), so that might be contributing; although the usual error I get is either no compatible encryption, can not connect, or connection interrupted.

I would bet this is the issue. Upgrade, it's easy :)

 

[mfb]

It uses TLS 1.2, yes. That is a standard established in 2008.

How old does your OS have to be to not work with more recent versions of Firefox?

 

[Tom.G]

How old does your OS have to be to not work with more recent versions of Firefox?

Win 7 is the oldest OS for the current FF 56.0.2
To work on XP, the newest FF version is 52

It's getting to the point I'll have to do something soon. I'll start the search/research for compatible plug-ins & add-ons to keep the features I use. Meanwhile, this system will ignore the security warning for https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css. At leaast those elusive icons will be sticking around!

Thanks a bunch for sticking around for this journey. 'Tis appreciated!

 

[mfb]

To work on XP, the newest FF version is 52

That is still much more recent than Firefox 18. And you probably shouldn't use XP (or older) on a computer with internet access.