That should work fine. There are mainly two ways to go about it.

1. Install Stylish and restart Firefox when prompted.
   • https://addons.mozilla.org/firefox/addon/stylish/
2. Click the Stylish icon on the navigation toolbar and choose Write New Style, then Blank style.
3. Paste the following in the text box, give the style a name, then click the Save button.

textarea, input, select {
  background-color: white !important;
  color: black !important;
 -moz-appearance: none !important;
}

If you don't want to install an add-on, you can use the userContent.css file instead, but I don't recommend it.

• http://kb.mozillazine.org/UserContent.css

1. Start a text editor like Kate. 2. Paste the following in a new file.

textarea, input, select {
  background-color: white !important;
  color: black !important;
 -moz-appearance: none !important;
}

3. Save the file as userContent.css to your desktop. Note that the file name is case-sensitive. 4. In Firefox, type about:support into the address bar and press Enter. 5. Click the Show Folder button. Your Firefox profile folder opens in your file manager. 6. Create a new folder called chrome — again note the name is case-sensitive. 7. Move the userContent.css file from the desktop into the chrome folder. 8. Restart Firefox for the changes to take effect.

That's it! Many thanks! :)

Why do you just not recommand to use custom css? Seems better to me than installing a new add-on, especially when we know that firefox has been mocked for its poor performance related to add-on (firebug and so on).

Anyway, thank you again, it works now.

nils.acrimont wrote:

That's it! Many thanks! :)

You're welcome ^_^

nils.acrimont wrote:

Why do you just not recommand to use custom css? Seems better to me than installing a new add-on

As long as you managed to get it to work, there's no problem.

I don't recommend either userContent.css or userChrome.css because

• On Windows, file extensions are hidden by default, so users often end up naming the files userContent.css.txt / userChrome.css.txt
• The file names are case-sensitive. A single typo makes them not work (e.g. UserChrome.css instead of userChrome.css).
• The files must be placed in a specific folder. This folder in turn must be placed under the profile folder, which isn't easy for everyone to find. Its name is again case-sensitive.
• Firefox must be restarted for the changes to take effect. Styles applied with Stylish take effect immediately. If you semi-frequently install or modify styles, this is a huge plus.
• Stylish lets you preview styles instantly before applying them. If you make a mistake in userChrome.css / userContent.css, you have to edit the files, restart Firefox and see if that helped, and if not, do it over again.
• Previewing styles in Stylish shows you if there are any CSS errors that would make the style not work.
• With Stylish, you can install any style from http://userstyles.org with the click of a button. These styles can be checked for updates from the Add-ons Manager, just like add-ons.