Firefox created by Netscape in 1998 before their acquisition by AOL. Firefox usage grew to a peak of 32% at the end of 2009, temporarily making version 3.5 the world's most popular browser. Usage then declined in competition with Google Chrome. , Firefox has 11.6% usage share as a "desktop" browser, according to StatCounter, making it the second-most popular such web browser; usage across all platforms is lower at 5.44% (and then 4th-most popular overall). Firefox is still the most popular desktop browser in Cuba (even most popular overall at 62.77%) and Eritrea with 78.3% and 91% of the market share,
Kerning some complex typesetting functions that may be hard to implement through plug-ins (kerning in particular) may be relatively easy to implement through separate tools. The CSS property codice_1 enables kerning in Firefox, Chrome, Safari, Opera, and the Android Browser. There is also a proposed CSS3 property codice_2, but it is only supported in Firefox (prefixed with codice_3), Chrome and Opera (prefixed with codice_4 in both) and in Internet Explorer starting at version 10. The CSS3 draft suggests that kerning should always be enabled for OpenType fonts. The human perception of kerning can vary with the intraword and interword spacing during