Hello bhlottawa, try disabling graphics hardware acceleration.

You might need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).

Then perform these steps:

1. Open Firefox Options window as follows, click the menu button and select Options.
2. In the Firefox Options window, click the Advanced tab, then select General.
3. In the settings list, you should find the Use hardware acceleration when available checkbox. Uncheck this checkbox.
4. Now, restart Firefox and see if the problems persist.

Additionally, please check for updates for your graphics driver by following the steps mentioned in the following Knowledge base articles:

• Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

• Upgrade your graphics drivers to use hardware acceleration and WebGL

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

Note also that you have an older firefox version, 38.0.5 is the current release, please update Firefox to the latest version.

Thank you.

bhlottawa said

I do a lot of cut and paste for recipes on all recipes.com. When I cut and paste into MS Word and then go back to the website, Firefox seems to go into slow mode. If I shut down Firefox and go back again I can cut and paste into MS Word but then Firefox slows right down again. Tried to do a few changes as suggested on the Firefox website to no avails. Any suggestion would be greatly appreciated. Thanks.

Thanks for the tip... Ended up being the wrong graphic adapter drivers. Thanks again.

You are welcome