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Purpose of the "@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */" css code?

  • 5 biyano
  • 1 eza na nkokoso oyo
  • 201 views
  • Eyano yasuka ya Rick W

Rick W
Rick W
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Can anyone please explain the purpose of the 

   @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

css code, which is often recommended to head any userchrome.css text inside the chrome folder? What happens when you omit this @namespace url line?

Can anyone please explain the purpose of the @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */ css code, which is often recommended to head any userchrome.css text inside the chrome folder? What happens when you omit this @namespace url line?

Solution eye eponami

Hi, have a read of https://www.userchrome.org/adding-style-recipes-userchrome-css.html

If your question is resolved by this or another answer, please take a minute to let us know. Thank you!

Tanga eyano oyo ndenge esengeli 👍 1

All Replies (5)

Rick W
Rick W Nkolo motuna
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Is it simply an advertisement for Firefox XML User Interface Language?

cor-el
cor-el
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  • Top 10 Contributor
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You use this line to set the namespace for the code on that page.

Rick W
Rick W Nkolo motuna
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Why does one need to set a namespace?? What happens if it is not done?

Scribe
Scribe
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Solution eye oponami

Hi, have a read of https://www.userchrome.org/adding-style-recipes-userchrome-css.html

If your question is resolved by this or another answer, please take a minute to let us know. Thank you!

Rick W
Rick W Nkolo motuna
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Thanks, Scribe, that is very useful:

Scribe said

Hi, have a read of https://www.userchrome.org/adding-style-recipes-userchrome-css.html

Good to know it is safe to leave that namespace line out of my userchrome.css code.