Then { -brand-name-microsoft } began shipping { -brand-name-ie } with their { -brand-name-windows } operating system. Within 4 years, it had 75% of the market and by 1999 it had 99% of the market. The company faced antitrust litigation over the move, and { -brand-name-netscape } decided to open source its codebase and created the not-for-profit <a href="{ $mozilla }">{ -brand-name-mozilla }</a>, which went on to create and release { -brand-name-firefox } in 2002. Realizing that having a browser monopoly wasn’t in the best interests of users and the open web, { -brand-name-firefox } was created to provide choice for web users. By 2010, { -brand-name-mozilla } { -brand-name-firefox } and others had <a href="{ $marketshare }">reduced { -brand-name-ie }’s market share to 50%</a>.

Yna cychwynnodd { -brand-name-microsoft } ddarparu { -brand-name-ie } gyda'u system weithredu { -brand-name-windows }. O fewn 4 blynedd, roedd ganddo 75 % o'r farchnad ac erbyn 1999 99 % o'r farchnad. Roedd y cwmni'n wynebu ymgyfreitha gwrth-ymddiriedaeth oherwydd y weithred, a phenderfynodd { -brand-name-netscape } agor eu cod ffynhonnell a chreu y corff nid-er-elw <a href="{ $mozilla }">{ -brand-name-mozilla }</a>, a aeth ymlaen i greu a rhyddhau { -brand-name-firefox } yn 2002. Gan sylweddoli nad oedd cael monopoli porwr er lles defnyddwyr a'r we agored, crëwyd { -brand-name-firefox } i roi dewis i ddefnyddwyr y we. Erbyn 2010, roedd gan { -brand-name-mozilla } { -brand-name-firefox } ac eraill <a href="{ $marketshare }">wedi lleihau cyfran marchnad { -brand-name-ie } i 50 %</a>.