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 websites. Are there any problems?

Then restart.

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most resent 7 - 10 crash reports, and copy them. Now go to the reply box below and paste them in.

OK - It looks like the "Turn off hardware acceleration" did the trick - you can skip the previous steps of clearing the cache and cookies.

Oh - and by the way ... anyone reading this, you can speed up this fix by opening Firefox in the "safemode" ... simply hold down the shift key and double click the Firefox icon on your desktop.

Windows 10 - Firefox 46.0.1

Thanks to FredMcD!

Glad to help. Safe Surfing.

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.

Looks like problem isn't solved after all. I actually followed all the steps including removing cookies and clearing cache before turning off hardware accelerators, and I was able to get into Princess URL's --BUT -- other problems started to occur with opening my pictures using Adobe photoshop. Don't want to deal with more problems that potentially will arise.

Luckily I created a restore point (Windows 10) before doing any of the above.

When I restored my system, all went back to normal, including not being able to access Princess URL's. I then launched Firefox and unchecked the hardware acceleration (in the normal mode) - still can't access Princess URL's - computer locked up.

Ran Task Manager to exit Firefox, ran Norton Utilities to clean up/optimize windows, opened Firefox in Normal Mode, rechecked hardware acceleration. Closed Firefox, re-opened in Safe Mode and was able to access Princess URL's.

Enough. Definitely an issue with latest Firefox and Princess URL's. Notified Princess customer service about the potential problem that ANYONE using latest Firefox browser to access Princess will have issues.

Solution - either access Princess URL's via my iPhone, On my PC -using Firefox in Safe Mode, or use browser.

Hopefully Mozilla will look into this issue and provide a fix to the problem on the next update.

It could be the work of one of your add-ons. Type about:addons<enter> in the address bar to open your Add-ons Manager. Hot key; <Control>(Mac=<Command>)<Shift> A)

In the Add-ons Manager, on the left, select Extensions. Disable a few add-ons, then Restart Firefox.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All of them.

If the problem continues, disable some more (restarting FF). Continue until the problem is gone. After, you know what group is causing the issue. Re-enable the last group ONE AT A TIME (restarting FF) until the problem returns.

Once you think you found the problem, disable that and re-enable all the others, then restart again. Let us know who the suspect is detective.

OK - I wasn't going to spend anymore time on this, but it bugs me that I can't figure this out.

I followed your recent suggestion, and still cannot get into any Princess URL without locking up the computer, yet when I open Firefox in the "Safe Mode", I don't have a problem.

I've attached a snipped screen shot showing my addon's disabled (in safe mode), where the problem doesn't exist.

I was the person who posted this question initially. After trying all of the fixes with no luck...now the problem has been solved. I don't know whether or not Firefox came in with a fix or if one of the steps that I made did the trick. I may have left one of the measures intact. I really don't know. Regardless, now when I attempt to sign in to my Cruise Personalizer on the Princess Cruise site everything works as it should. Thanks for all the skilled input. I couldn't get there with my own knowledge.

sfb727 Glad to help. Safe Surfing.

5225db

Type about:preferences#advanced<Enter> in the address bar. Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Type about:addons<enter> in the address bar to open the Add-ons Manager. Hot key; <Control>(Mac=<Command>) <Shift> A)

On the left side of the page, select Appearance. Then select Default.

Now restart Firefox.