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Firefox 14.0.1 has a spell checking error./ bug in the code

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I just had all my machines update to 14.0.1 (WIN XP SP3) I had a clean boot right before the update occurred. This is the first time I had used this version on this machine.

When the program came up, I had no access to the spell checker at all. Nothing I did could change this (checking and un-checking the feature in the right click menu.

So, I selected the option of restarting the browser in "SAFE MODE" with no add-ons. There was no change at all (still no spell checking) . So, I went to this site, made an account, activated the count (this entire time FIREFOX had no spell checking) and I created a report.

I was most of the way done writing the report when suddenly the spell checking started to work. I made no changes to the settings, when suddenly I had spell checking working.

This means there is an intermittent error;p often the hardest to find from my 20+ years of programming experience (Senior IT contractor)..

So, have find finding this one. Intermittent bugs are the hardest to track, and tend to come from issues like scope issues, settings stored in files/registry, overly convoluted code (like a rush job that isn't fully understood & was just hammered on until it seemed to work). From my experience it often happens in the last steps of finishing a release - accidentally introducing a bug into what was a working section of code (unexpected ramification are a suspect) into a previously working program piece of a program.

I just had all my machines update to 14.0.1 (WIN XP SP3) I had a clean boot right before the update occurred. This is the first time I had used this version on this machine. When the program came up, I had no access to the spell checker at all. Nothing I did could change this (checking and un-checking the feature in the right click menu. So, I selected the option of restarting the browser in "SAFE MODE" with no add-ons. There was no change at all (still no spell checking) . So, I went to this site, made an account, activated the count (this entire time FIREFOX had no spell checking) and I created a report. I was most of the way done writing the report when suddenly the spell checking started to work. I made no changes to the settings, when suddenly I had spell checking working. This means there is an intermittent error;p often the hardest to find from my 20+ years of programming experience (Senior IT contractor).. So, have find finding this one. Intermittent bugs are the hardest to track, and tend to come from issues like scope issues, settings stored in files/registry, overly convoluted code (like a rush job that isn't fully understood & was just hammered on until it seemed to work). From my experience it often happens in the last steps of finishing a release - accidentally introducing a bug into what was a working section of code (unexpected ramification are a suspect) into a previously working program piece of a program.

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Hi BarleySinger and thanks for reporting us this issue. Yes. Intermitent bugs are really difficult to track and solve, so please try to do this things:

  • Try to reset Firefox so all settings that may be creating this problems will be removed.

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

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

  • Try to perform a antivirus scan on your computer so you check you have no malware.

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try some of the following programs to scan for malware:

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

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

  • Send us troubleshooting information.

In order to be able to find the correct solution to your problem, we require some more non-personal information from you. Please do the following:

  • Click the Firefox button at the top left, then click the Help menu and select Troubleshooting information from the submenu. If you don't have a Firefox button, click the Help menu at the top and select Troubleshooting information from the menu.

Now, a new tab containing your troubleshooting information should open.

  • At the top of the page, you should see a button that says "Copy all to clipboard. Click it.
  • Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.

If you need further information about the Troubleshooting information page, please read the article Use the Troubleshooting Information page to help fix Firefox issues.

Thanks in advance for your help!

  • Check the issue is still reproducing intermitently, and it was not an isolated problem (Maybe Firefox was still preparing the spell checker).