Please provide the link(s) you are having problems with. Also;

Hello,

In order to better assist you with your issue please provide us with a screenshot. If you need help to create a screenshot, please see How do I create a screenshot of my problem?

Once you've done this, attach the saved screenshot file to your forum post by clicking the Browse... button below the Post your reply box. This will help us to visualize the problem.

Thank you!

Hello

Thanks for responding to my query. I have copied a link to one of the mapping programmes I use - the UK Ordnance Survey Getamap site and a screen shot showing the problem I have.

As you can see the map has a set of immovable text across it beginning 'Invalid credentials....'

I don't have this problem when I use the same site in Chrome

http://www.getamap.ordnancesurveyleisure.co.uk/?key=qDq-3dBtJQ6S8_jlktTQoA2

I see it. You are logged in, so you should not get that type of message. Go to the main page of the site. Go to your profile and make sure that everything is okay there.

Log out, then log back in. Is the problem still there?

Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache and

• Remove Cookies Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences<Enter> in the address bar.

• Cookies; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
• Cache; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

Then restart.

Thanks so much for getting back to me. I followed your instructions as far as 'Cache' but don't know where to find that. I went to the Cookies page and cleared the cookies for the Getamap site. Is the 'Cache' on that same page? I couldn't see it.

Look at my last message for the instructions.

Sorry, but I don't know how to follow the instructions you gave. I'll have to continue using Chrome instead of Firefox.

Tell me what you do not understand. All of it, part of it?

Hello, sorry it has taken a while for me to get back to you on this. I have followed your instructions. Sorry it took me a little while to do it but I'm not familiar with looking round the things you pointed me towards and it took me a bit to work it out. But I've done the things you suggested but it hasn't made any changes. I still get the same message across the web page. Thanks for your patience with this. If you have any more thoughts I'd be happy to have them.

Hello,

In order to better assist you with your issue please provide us with a screenshot. If you need help to create a screenshot, please see How do I create a screenshot of my problem?

Once you've done this, attach the saved screenshot file to your forum post by clicking the Browse... button below the Post your reply box. This will help us to visualize the problem.

Thank you!

You can try these steps in case of issues with web pages:

You can reload web page(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 cookies only from websites that cause problems.

"Clear the Cache":

• Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

• Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

• Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
• Do NOT click the Reset button on the Safe Mode start window

• https://support.mozilla.org/kb/Safe+Mode
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes