When I try to access some websites, I get a "cookie not supported" message

I first noticed that I couldn't click through on links from a website and now there are websites I can't access at all. I have tried clearing my cookies but that didn't fix the problem

Start Firefox in [[Safe Mode|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
If you use a bookmark then try to navigate to the page by starting from its main (home) page in case the bookmark is corrupted.
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"

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Why do I get error message 'disallowed key characters' when I try to access some websites.

This has happened with two particular websites I've been trying to access. Both are in the same domain (.cam.ac.uk), so is it a problem with them or some setting on my computer?

Start Firefox in [[Safe Mode|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
If you use a bookmark then try to navigate to the page by starting from its main (home) page in case the bookmark is corrupted.
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"

Error code 404 keeps coming up on screen when I try to access Vodafone website (using Mac Pro)

Error code 404 keeps coming up on screen when I try to access Vodafone website (using Mac Pro)
Any ideas why only started happening in last week ?

404 means the page you are looking for doesn't exist, if you are using a bookmark
type the website directly into your browser.
otherwise:
open terminal> type:
traceroute www.vodafone.com.au
you should get something like this:

When I try to access my mail I get No Sender

When I try to access my mail I get LOTS of No Sender. They say No sender, and are from dates that aren't correct. I have to search for the real mail among them.
iPhone5, iOS7.1.2
Yahoo mail
and my lap top is Mac OSX 10.6.8

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* On Windows you can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac you can open Firefox 4.0+ in Safe Mode by holding the '''option''' key while starting Firefox.
* On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
[[Image:FirefoxSafeMode|width=520]]
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''
Thank you.

When I try to access iTunes Store I get an error message stating feature not available in the uk store

when I try to access iTunes Store I get an error message stating feature not available in the uk store

Exact same thing is happening to me. Couldn't find where to view the Itunes version number after a quick look. I hate the "simplified" interface by the way. On windows 8.1. Really starting to hate itunes, very buggy, and apple device locked down content (I'm looking at you TV shows and Movies) make it a pain to use.

Hi, I just purchased Adobe Illustrator and I cant find the serial number. When I try to download using Cloud it says it does not support my computer system. Just yesterday I finished my trial. What shall i do?

I just purchased Adobe Illustrator and I cant find the serial number. When I try to download using Cloud it says it does not support my computer system. Just yesterday I finished my trial. What shall i do?

To locate the serial number:
http://helpx.adobe.com/x-productkb/global/find-serial-number.html
http://helpx.adobe.com/x-productkb/policy-pricing/serial-number-retrieval-process-faq.html

What is missing when I get a blank white screen when I try to Access some web sites?

On some web sites, I get a blank white screen when I try to access them.

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|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

I have the old I phone 4 when I try to access my I tunes store it will not load Someone please help and yes I have the latest update

I have the old I Phone 4. When I try to access my I Tunes Store from the phone it will not load. Please Help

Hello there, morganbailey02.
The following Knowledge Base article provides some great steps for troubleshooting your issue:
iOS: Unable to update or restore
http://support.apple.com/kb/HT1808
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro

I get error messages when I try to visit certain websites using Mozilla Firefox but not when I use other browsers

About two days ago I noticed that when I tried to access certain websites using Firefox I always got this error message; "The connection was reset". I initially thought it was a problem with my isp before noticing that the network was fine on my phone and iPad. I then attempted opening the same links that brought up the error message on the TorBrowser and it worked perfectly.
Basically the only website that works on my Firefox browser right now is Google but if I do a search on Google and then click on any link that comes up as a result I get the same error message, "The connection was reset". I can also log into my gmail account but I cannot access any other website including Feedly, Tumblr, Twitter, Yahoo, Wordpress, Blogspot, even though they work fine on my other browser.
I cleared my cache and cookies, wiped out all the browsing history but the problem persisted so I uninstalled Mozilla Firefox and reinstalled it. The problem is still there. I checked the proxy settings, I went through all the solutions on this page https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can?esab=a&as=aaq and still nothing. I am not sure what the problem is here but any solution will be much appreciated. I have used Firefox for years now and I am not really comfortable using another browser.
I use a Macbook OS X Version 10.9.4 and the latest Firefox 32.0.1

Create a new profile as a test to check if your current profile is causing the problems. 
See '''Creating a profile''':
*https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues
If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem 
'''Profile Backup and Restore'''
*http://kb.mozillazine.org/Profile_backup
*https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Just installed windows 8.1. when I try to access contacts in outlook get "the set of folders cannot be opened." Did not have problem in 8.0

I just installed windows 8.1 on my pc. When I try to access iclod contacts in outlook I get a message " the set of folders cannot opened". What to do?

Hi,
Please create a new Outlook profile to check whether the issue persists:
http://support.microsoft.com/kb/829918
Regards,
Winnie Liang
TechNet Community Support

When i try and download some items i get the error message that that say that the download can't continue because i need a later version of Firefox I have 5.0 currently installed on my PC. one such download was the Google toolbar

I have a dell 320 optiplex 1.80 GHz. as stated above when I try and download certain items i get an error message essentially telling me that my version of Firefox is not compatible with ?(item i'm trying to download) the most recent was Google toolbar. the irony of it all is that I have version 5.0 installed so not unless I miss something when I initially installed Firefox 5.0 would be the latest version

If you don't already have the "Google Toolbar" why would you want it, it is a problematic extension as are most third party toolbars. I would expect that anything that just about anything that you would use it for can be done with a bookmarklet. As for searching, the builtin Firefox search bar is wonderful you can add or create search engines for it.
Google Toolbar (the second link tells you how you run it)
* http://kb.mozillazine.org/Problematic_extensions
* https://support.mozilla.com/en-US/questions/837473

My trial version lasted only 1 hour. When I try to edit a photo I get a "Trial has expired message"

My trial version lasted
only about 1 hour. When I try to edit a
photo I get a message "Your Trial has expired" and it asks for my license key. How do I get 30 days of trial?

I changed some dates on some photos.
I think that is when my Trial expired. I deleted Photoshop Elements 8 and reloaded it. My trial was still expired. I have since purchased the product. Thanks for your help.

What can I do when I try to access a URL and get the message "MAC OSX doesn't recognize internet addresses starting with "c:"?

I recently tried to download a pdf file from a website in the UK. Up popped a message saying the website could not be accessed, followed by this message: "MAC OSX doesn't recognize internet addresses starting with "c:". I was able to access the website easily (its domain was "www") and the page listing the pdfs, but could not download a pdf. Of course," c:" appears not to be a valid domain name, but why would anyone use "c:" in place of a domain name in their URL? And what can I do about the problem? I'm using Snow Leopard 10.6.8 and Safari 5.1.10, but also have Firefox and Chrome loaded. Thanks.

An address starting with c: wouldn't be any kind of domain name. C: is the drive lettering system DOS and and later uses. By default, A: and B: are reserved for your first and second floppy disk drive. All hard drives are then named C: through Z:, if you have that many. C: is normally your startup disk.
Anyway, their PDF file is incorrectly linked to a file directly on the C: drive of someone's computer. It's not going to work no matter what you do.

When I try to install some plugins I get "Can't find Internet Plug-ins folder". Friends with the same machine using the same browser can download just fine. What gives?

When I try to install a plugin in any browser on my Mac Mini or my MacBook Pro, I get a "Can't find Internet Plug-Ins folder" message. Other friends with the same machines can install the plugin just fine. We can't find any reason why the plugin won't install on mine. Any ideas out there?
Thanks,

Triple-click anywhere in the line below on this page to select it:
/Library/Internet Plug-Ins
Right-click or control-click the highlighted line and select
Services ▹ Show Info
from the contextual menu.* An Info dialog should open.
Does the dialog show "You can only read" in the Sharing & Permissions section?
In the General section, is the box labeled Locked checked?
What is the Modified date?
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. Open a TextEdit window and paste into it (command-V). Select the line you just pasted and continue as above.

When I try to publish my website I continue to receive an error message that it's not able to upload an html file.

Every time I try to publish my website I receive this message,
"�Error:
Error uploading file santafebobatea.com_u3867.html. Click Resume to try again. If this problem persists, try again later."

I am getting the same problem - any advice out there?

When I try to access some websites, I get a "cookie not supported" message

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