Hello,

Many site issues can be caused by corrupt cookies or cache. In order to try to fix these problems, the first step is to clear both cookies and the cache. Note: This will temporarily log you out of all sites you're logged in to. To clear cache and cookies do the following:

1. Go to Firefox > History > Clear recent history or (if no Firefox button is shown) go to Tools > Clear recent history.
2. Under "Time range to clear", select "Everything".
3. Now, click the arrow next to Details to toggle the Details list active.
4. From the details list, check Cache and Cookies and uncheck everything else.
5. Now click the Clear now button.

Further information can be found in the Clear your cache, history and other personal information in Firefox article.

Did this fix your problems? Please report back to us!

Thank you.

I did all the clearing yesterday and again this morning just in case. Did not fix the problem.

Sometimes, sites divide their content and login logic over multiple servers. In that case, the sites may not recognize that you have logged in if you block third party cookies. Can you check your cookie settings, as described in this article: Websites say cookies are blocked - Unblock them.

During your earlier troubleshooting, did you try the site in Firefox's Safe Mode to rule out an extension as the potential culprit? More info: Diagnose Firefox issues using Troubleshoot Mode.

You can restart Firefox in Safe Mode using

Help > Restart with Add-ons Disabled (Flash and other plugins still run)

In the dialog, click "Start in Safe Mode" (not Reset)

Any difference?

Jscher2000

Thank you! Works in safe mode. I hope that when I add back in a couple of my menu bar buttons that I use on a frequent basis that it doesn't mess up the site again. I have been using myfitnesspal for over a year now and this is the first time I've had a problem with it.

I really appreciate the help and the response.

Thanks again, Suekuras

Life in Safe Mode is too limiting to be a full time solution, so the next step would be to consider which add-on might be affecting the site. What I suggest is two steps:

(1) Disable ALL nonessential or unrecognized extensions on the Add-ons page. Either:

• Ctrl+Shift+a
• orange Firefox button (or Tools menu) > Add-ons

In the left column, click Extensions. Then disable anything you don't really need for the next 72 hours.

Usually a link will appear above a disabled extension to restart Firefox. You can complete your work on the add-ons page and click the link as the last step.

(2) (If the problem continues) Try to make a site exception

One of your other extensions may be altering information Firefox normally sends to the site, for example, for privacy reasons. See whether you can make a site exception using its Options button on the Add-ons page.

I have disabled the add-ons. Did a restart and am right back at not being able to do anything. I'll give it some time to see if it helps before enabling things again. This is a nightmare.

Thanks again.

Hi suekuras, are any extensions still enabled now? You can extract a list of enabled and disabled extensions from the Troubleshooting Information page. Either:

• Help > Troubleshooting Information
• type or paste about:support in the address bar and press Enter

In the upper left corner of the page, click "Copy text to clipboard". Then you can paste into a reply. To keep it short, you can remove the part starting with "Important Modified Extensions" before posting.

Hi again.

Everything has been disabled. I hope this is the info your looking for.

Application Basics

Name: Firefox Version: 28.0 User Agent: Mozilla/5.0 (Windows NT 6.1; rv:28.0) Gecko/20100101 Firefox/28.0

Crash Reports for the Last 3 Days

All Crash Reports (including 1 pending crash in the given time range)

Extensions

Name: Adblock Plus Version: 2.5.1 Enabled: false ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: Add to Amazon Wish List Button Version: 1.10 Enabled: false ID: amznUWL2@amazon.com

Name: E-Web Print Version: 1.19.00 Enabled: false ID: e-webprint@epson.com

Name: HTTPS-Everywhere Version: 3.5 Enabled: false ID: https-everywhere@eff.org

Name: iWinGames Plugin Version: 1.0 Enabled: false ID: {98e34367-8df7-42b4-837b-20b892ff0847}

Name: LastPass Version: 3.1.1 Enabled: false ID: support@lastpass.com

Name: Personas Plus Version: 1.7.3 Enabled: false ID: personas@christopher.beard

Name: StumbleUpon Version: 4.16 Enabled: false ID: {AE93811A-5C9A-4d34-8462-F7B864FC4696}

JavaScript

Incremental GC: true

Accessibility

Activated: false Prevent Accessibility: 0

I think you can go ahead and re-enable Adblock Plus; that shouldn't interfere with logging in.

A couple of other differences between Firefox's Safe Mode and normal mode are:

(1) Hardware acceleration of graphics is disabled

While it's hard to see why that should make any difference, you can manually disable it in normal mode in the Options dialog:

orange Firefox button (or Tools menu) > Options > Advanced

On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"

That will take effect the next time you exit and start up Firefox again.

(2) JavaScript compilers are disabled

These compilers help improve performance of sites that use a lot of scripts (for example, Gmail), but sometimes run into trouble. I'll have to look up how to disable those in normal mode if you want to test that.

jscher2000,

Your brilliant.

It's interesting that you brought up Java. I have had some issue with it. I just installed the latest version and uninstalled the old. I tried myfitnesspal again and everything worked. To think it was something as simple as an update. I have my updates set to be done automatically. Apparently, that did not. I was running an older version, the newer version never installed. From now on, I will keep Java in mind if I have any other issues. Usually, things are issue free.

Your amazing! Thank you for spending so much time with this problem for me. I really do appreciate it. Wish there was someway to repay you for your help.

I hope others appreciate the time you spend with people to resolve problems.

Suekuras

Jefferson was talking about JavaScript and not about Java.

• http://kb.mozillazine.org/JavaScript

To avoid confusion:

• http://kb.mozillazine.org/JavaScript_is_not_Java

Thank you for clearing that up for me. The Java didn't fix the problem. Something we did helped for a bit, but, myfitnesspal is back to the same problem I had before. So I really don't know what has happened and guess I'll just use chrome for that particular site. Everything else works fine in Firefox.

Does it still work properly when you start Firefox in Safe Mode or doesn't that work as well?

This can be caused by corrupted cookies or cookies that are blocked (check the permissions on the about:permissions page).

Clear the cache and 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"

You can inspect and manage the permissions for the domain in the currently selected tab via these steps:

• Click the "Site Identity Button" (globe/padlock) on the location bar
• Click "More Information" to open "Tools > Page Info" with the Security tab selected
• Go to the Permissions tab (Tools > Page Info > Permissions) to check the permissions for the domain in the currently selected tab

You can inspect and manage the permissions for all domains on the about:permissions page.

• https://support.mozilla.org/kb/how-do-i-manage-website-permissions

Most of this was done this morning. I just checked the site identity button and other items after that. Everything is fine. This is frustrating and I think I may as well just use Chrome for this site. My head is aching from 2 days of trying to fix the problem. I spent all day yesterday with the myfitnesspal people doing all the same steps. This is the only site I am having issues with. I keep Chrome on the desktop only because of another site that I use on occasion has specified that certain functions will only work in Chrome. So if I have to have 2 browsers running, then that's what I'll do. I don't know what else to do and don't have the time to keep going through the same things over and over. Obviously, you guys are as stumped as I am.

Thanks for the help.

Hello.

I used to have this problem with only Firefox for quite some time. I was beyond frustrated. MyFitnessPal is 100% compatible with Firefox, however, a certain [type of] extension can cause major headaches. I hope this fix helps you too.

Do you by chance have the https-everywhere extension installed? It's a great add-on and I highly recommend using it, however, unless you "disable" it's usage with MyFitnessPal, you won't be able to login to your account, add food, update weight, see graphs, etc.

So don't panic. Your issue is likely to be what I had as well. I just went into the https-everywhere extension and where it said "MyFitnessPal" with a checkmark (saying it's ACTIVE for that site), I simply clicked it to disable the add-on for that one site.

Simple and it works instantly. I hope it does for you too! If you don't have that add-on then it is still likely related to something similar so best of luck to you!

D