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HTTP/2 301 content-type: text/html; charset=iso-8859-1 content-length: 254 location: https://www.itmedia.co.jp/keywords/firefox.html date: Thu, 23 Jul 2026 13:29:27 GMT strict-transport-security: max-age=31536000 server: nginx expires: Thu, 23 Jul 2026 13:44:27 GMT cache-control: max-age=900 x-cache: Miss from cloudfront via: 1.1 a38de3710bfeff0774d21327d8559148.cloudfront.net (CloudFront) x-amz-cf-pop: BOM78-P10 x-amz-cf-id: WL5gz-PdQLKn31FGk0XW20riUa0E1PdJNignI7sXzAmEIKRmwiHffA== x-xss-protection: 1; mode=block x-frame-options: SAMEORIGIN referrer-policy: strict-origin-when-cross-origin HTTP/1.1 301 Moved Permanently Server: CloudFront Date: Thu, 23 Jul 2026 13:29:27 GMT Content-Type: text/html Content-Length: 167 Connection: keep-alive Location: https://www.itmedia.co.jp/keywords/firefox.html X-Cache: Redirect from cloudfront Via: 1.1 eca5969248a65c16b067910513e714e8.cloudfront.net (CloudFront) X-Amz-Cf-Pop: BOM78-P10 X-Amz-Cf-Id: Y2kpOdMqN2nricPkIBTKc2ZBahH0LFIcjQ3U9TnxM4zvyb-FBkjlJA== X-XSS-Protection: 1; mode=block X-Frame-Options: SAMEORIGIN Referrer-Policy: strict-origin-when-cross-origin HTTP/2 200 content-type: text/html content-length: 16617 date: Thu, 23 Jul 2026 13:29:27 GMT accept-ranges: bytes server: nginx vary: Accept-Encoding vary: Accept-Encoding,User-Agent content-encoding: gzip expires: Thu, 23 Jul 2026 13:44:27 GMT cache-control: max-age=900 strict-transport-security: max-age=31536000 x-cache: Miss from cloudfront via: 1.1 a38de3710bfeff0774d21327d8559148.cloudfront.net (CloudFront) x-amz-cf-pop: BOM78-P10 x-amz-cf-id: J87hfHV39Dm3ouIoUmUeuILNjHrv4NfJQCW2ETpS55Y104XZf_zInA== x-xss-protection: 1; mode=block x-frame-options: SAMEORIGIN referrer-policy: strict-origin-when-cross-origin ?uFirefox?v?֘A?̍ŐV ?j???[?X?E???r???[?E??? ?L?? ?܂Ƃ? - ITmedia Keywords

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?uFirefox?v?Ɋւ????񂪏W?܂????y?[?W?ł??B

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Windows 11?^Server 2025?ɉe???F
Windows?J?[?l???̐Ǝ㐫?????p????PoC???J?@Chrome?Ȃǃu???E?U?̊u???@?\???˔j
Windows?J?[?l???̐Ǝ㐫?𑫊|?????SYSTEM?????ɔ???PoC?????J???ꂽ?B???̎?@?́AChrome??Edge?AFirefox?Ƃ?????Web?u???E?U?̊u???@?\??˔j?ł??邱?Ƃ????????Ă???BPoC???J?ň?C?Ɍ???????тт??g???p?V?i???I?h?̒??g?Ƃ́B?i2026/5/29?j

Deep Insider Brief ?\ ?Z?p?́g???h?ɂЂƌ??R?????g?F
?u???E?U??AI?@?\?̃I???E?I?t?̓??[?U?[?????߂鎞??ɁH?@AI????@?\?𓋍ڂ??邱?Ƃ?Mozilla?????\?AFirefox?f?X?N?g?b?v?łɓ??ڂ?
Firefox???J??????Mozilla?́A?f?X?N?g?b?v?ł̃u???E?U?ɁuAI????v?ƌĂ΂??AI?Ǘ??@?\?𓱓?????Ɣ??\?????B???̋@?\??Firefox 148?Œ񋟂???A???[?U?[?͐???AI?@?\?̃I???E?I?t???ꊇ?܂??͌ʂɐ???ł???悤?ɂȂ?B?i2026/2/10?j

Firefox??AI?@?\???ꊇ?I?t?ɂ???uAI controls?v?ݒ?ǉ???
Mozilla?́AFirefox?̐V?ݒ?uAI controls?v??2??24?????J?̃o?[?W????148???瓱??????B?|???`???b?g?{?b?g?A?^?u?????Ȃǂ?AI?@?\???ꊇ?A?܂??͌ʂɖ??????ł???BAI?̗??p?ɂ??đ??l?Ȉӌ??????钆?A???[?U?[?ɑI??????^???A?]???ʂ??Web?u???E?W???O?????ێ??ł???悤?ɂ???_?????B?i2026/2/3?j

?Z?L?????e?B?j???[?X?A???[?g?F
Tor Browser 15.0a4???J?@AI?@?\?????S?폜???????????d???̌??f
Tor?v???W?F?N?g?͊J???ŁuTor Browser 15.0a4?v?????J?????BFirefox?ɓ???????Ă???AI?@?\?????S???E???????̌??@????폜???A???????d???̕??j?𖾊m?????Ă???B?i2025/10/23?j

Firefox?́g??œǂށh?@?\?uPocket?v?񋟏I???ց@7??8????
Mozilla?́AWeb?u???E?U?uFirefox?v?́g??œǂށh?@?\?uPocket?v?̒񋟂?7??8???ɏI??????Ɣ??\?????B?܂??A?M???ł??Ȃ????r???[???ʊg???@?\?uFakespot?v??7??1???ɏI??????BWeb?̗??p?`?Ԃ̕ω??ɑΉ????邽?߁A???\?[?X???Ĕz??????B?i2025/5/23?j

FAQ????u?f?[?^???????Ĕ̔????邱?Ƃ͂Ȃ??v?폜?Ō??O?L?܂?F
?u?????????オ?_???v?@Mozilla?A?uFirefox?v?ɗ??p?K??𓱓????????R?????
Mozilla?́A?uFirefox?v?u???E?U?ɂ????闘?p?K??̏??????ƁA?u?v???C?o?V?[?Ɋւ???ʒm?v?̍X?V?𔭕\?????B?V???????p?K???2025?N2??25???ɔ??????Ă???B???̗??p?K??̕?????AFAQ?̍X?V??????s???⌜?O?̐??ɑ΂??AMozilla???Ӑ}??????????B?i2025/3/4?j

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Windows?ƃu???E?U?̐Ǝ㐫?????p?@?u?T?C?g?K??ő??????v?̎???Ƃ?
???????̑g?D?????p????uFirefox?v??uWindows?v?̐Ǝ㐫??A???????ăV?X?e???ɓ??荞?ލU???ɂ??āAESET?͌x????炵?Ă???B???̎???Ƃ͂ǂ̂悤?Ȃ??̂Ȃ̂??B?i2025/1/9?j

?Z?L?????e?B?j???[?X?A???[?g?F
Mozilla??Firefox?̏d??ȐƎ㐫???ً}?C???@?????ɃA?b?v?f?[?g??
Mozilla??Firefox?ɂ?????d??ȐƎ㐫?iCVE-2024-9680?j???C???????B???̐Ǝ㐫?̓????[?g?R?[?h???s???\?ɂ?????̂Ƃ???AESET?ɂ???Ĕ???????Ă???B???[?U?[?͑??₩?ɃA?b?v?f?[?g???邱?Ƃ??????????B?i2024/10/16?j

?T???́u?C?ɂȂ?j???[?X?v??C?ǂ݁I?F
Google Chrome??3??AI?V?@?\???o??^?uFirefox 129.0?v?????[?X?@???[?_?[?r???[???啝?ɋ???
???????茩?????Ă???????ǁA??????ƋC?ɂȂ?\?\????ȃj???[?X???T???Ɂg??C?ǂ݁h????A?ځB????́A8??4???T?𒆐S?Ɍ??J???ꂽ??ȃj???[?X????C?Ƀ`?F?b?N???܂??傤?I?i2024/8/11?j

?uChatGPT?v?uGoogle Gemini?v?uHuggingChat?v?uLe Chat Mistral?v?ɑΉ??F
Mozilla?A?uFirefox Nightly?v?Ŏ?vAI?`???b?g?T?[?r?X???T?C?h?o?[???痘?p?\?Ɂ@???̑_???Ƃ́H
Mozilla?́A?uFirefox?v?u???E?U?̎????łł???uFirefox Nightly?v?ŁA??vAI?`???b?g?T?[?r?X?ɃA?N?Z?X?ł???????I?@?\?𔭕\?????B?i2024/7/1?j

CES 2024?F
?p?i?\?j?b?N?̃X?}?[?g?e???r???uFire TV?v?Ɂ\?\OS???uFire OS?v?ɐ؂?ւ??@2024?N???珇??
?p?i?\?j?b?N?̃X?}?[?gTV??OS???AFirefox OS????Fire OS?ɐ؂?ւ?邱?ƂɂȂ????B2024?N?ɔ???????t???O?V?b?v?L?@EL????TV???؂?ɁA?p?i?\?j?b?N?̃X?}?[?gTV?ɁuFire TV?v?̋@?\??????????邱?ƂɂȂ?B?i2024/1/10?j

WebP?R?[?f?b?N?̏d??ȐƎ㐫?Ώ???Chrome?Ȃǎ?vWeb?u???E?U???ً}?X?V
?摜?t?H?[?}?b?g?uWebP?v?ɏd??ȃ[???f?C?Ǝ㐫????????AChrome?AEdge?AFirefox?ABrave?Ȃǂ??C???̂??߂̍X?V???????[?X?????B???Ɉ??p????Ă???B?i2023/9/14?j

?g???@?\?̊J???҂ɃA?b?v?f?[?g?𐄏??F
Mozilla?AAndroid?pFirefox?ŃT?[?h?p?[?e?B?g???@?\???T?|?[?g????Ɣ??\
Mozilla?͐??J???ȓ??ɁAFirefox?A?h?I???T?C?g?iaddons.mozilla.org?FAMO?j??Android?pFirefox?u???E?U?????g???@?\?̃I?[?v???G?R?V?X?e???̃T?|?[?g???J?n????B?i2023/8/17?j

Windows 7?A8?A8.1???T?|?[?g????Ō?̃o?[?W?????F
Mozilla?A?uFirefox 115?v?????J?@Chrome?x?[?X?u???E?U?ŕۑ????????ϕ??@?̈????p?????\??
Mozilla?́A?f?X?N?g?b?v?pFirefox?u???E?U?̍ŐV?ŁuFirefox Version 115.0?v?????J?????BChrome?x?[?X?u???E?U?ŕۑ????????ϕ??@?̈????p???ȂǁA????̐V?@?\???ǉ?????A?Z?L?????e?B?Ǝ㐫??o?O?Ȃǂ̖?肪?C??????Ă???B?i2023/7/7?j

1Password?A?u?p?X?L?[?v???T?|?[?g?@??v?u???E?U?̃??Ŋg???@?\??
?T?u?X?N???p?X???[?h?Ǘ??c?[????1Password?́AWeb?u???E?U?ł́u?p?X?L?[?v?T?|?[?g???J?n?????BChrome?AEdge?ASafari?AFirefox?ABrave?Ƀ??ł̊g???@?\???C???X?g?[?????邱?ƂŎg????悤?ɂȂ?B????A?}?X?^?[?p?X???[?h?̃p?X?L?[?????v?撆?B?i2023/6/7?j

Web?u???E?U?u???????g???߂??v?h?~?@?y??3??z
?uChrome?v?uEdge?v?uFirefox?v?̃??????g?p?ʂ͂ǂꂾ???Ⴄ?H?@???肵?Ă݂?
Web?u???E?U?̃??????g?p?ʂɂ́A?ǂ̒??x?̈Ⴂ??????̂??B??v??Web?u???E?U?uGoogle Chrome?v?uMicrosoft Edge?v?uFirefox?v???g???āA???ꂼ??̃??????g?p?ʂ𑪒肷??e?X?g?????{?????B???̌??ʂ́B?i2023/1/20?j

Apple?AGoogle?AMozilla???u???E?U?x???`?}?[?N?uSpeedometer 3?v?ŋ???
Apple?AGoogle?AMozilla??Web?u???E?U?x???`?[?}?[?N?uSpeedometer 3?v?̊J???ŋ??́B????????΁ASafari?AChrome?AFirefox?𓯂??????Ŕ?r?ł??邱?ƂɂȂ?B?i2022/12/17?j

Google?AWindows??Chrome?̃[???f?C???p?̖??Ԋ?Ɛ??X?p?C?E?F?A???u???b?N
Google?̋??Е??̓O???[?vTAG?́AChrome?AFirefox?AMicrosoft Defender?̃[???f?C?Ǝ㐫??W?I?Ƃ???G?N?X?v???C?g?t???[?????[?N???u???b?N?????Ɣ??\?????B?X?y?C???̖??Ԋ?Ƃ????̃t???[?????[?N?Ɋ֘A???Ă???Ǝw?E?????B?Ǝ㐫?ɂ͑Ώ??ς݂Ƃ??Ă???B?i2022/12/1?j

Firefox?AFirefox ESR?Ɂu?d?v?v?̐Ǝ㐫?@?v???ȃA?b?v?f?[?g??
Mozilla??Firefox??Firefox ESR?ɕ????̐Ǝ㐫?????݂???ƕ񍐂????B???????g?p???Ă???ꍇ?̓o?[?W???????m?F???A?v???ɃA?b?v?f?[?g??K?p???Ăق????B?i2022/10/25?j

Firefox?AThunderbird?̍ŐV?ł????J?@?[???x?u?d?v?v?̐Ǝ㐫?𕡐??C??
Mozilla??Mozilla Firefox?AFirefox ESR?AThunderbird?̃Z?L?????e?B?A?b?v?f?[?g?????J?????B?Ǝ㐫?̒??ɂ͐[???x?u?d?v?v?iHigh?j?ƕ??ނ??????̂??܂܂?Ă??邽?ߒ????ɃA?b?v?f?[?g??K?p???邱?Ƃ??]?܂??B?i2022/7/1?j

Firefox 102?????[?X?@Meta???u???b?N?ł???g???b?L???O?h?~?u???i?v?@?\?ǉ?
Mozilla?́uFirefox 102?v???????[?X?????B?????^?g???b?L???O?h?~?@?\?́u???i?v???[?h?ŁAMeta??HubSpot?Ȃǂ????[?U?[?ǐՂɗ??p???Ă???g???b?L???O?ɕK?v?ȃN?G???p?????[?^??URL???珜???????B?_?E?????[?h?p?l?????J???Ȃ??悤?ɐݒ肷??@?\???ǉ????ꂽ?B?i2022/6/30?j

Firefox?A?V?g???b?L???O?h?~?@?\??W???ŗL???Ɂ@Cookie?̃g???b?J?[?@?\?̂݃u???b?N
Mozilla???uFirefox?v?ɂ????āACookie?ɂ????̃g???b?L???O??h???u?g?[?^??Cookie?v???e?N?V?????v?@?\??W???ŗL?????????B?i2022/6/16?j

Firefox??Thunderbird?̐V?o?[?W?????????J?@?[???x?u?d?v?v?̐Ǝ㐫?ɑΏ?
Mozilla?́AFirefox??Thunderbird?ɐƎ㐫?????݂???Ƃ??ďC???ł????J?????B?Ǝ㐫?̐[???x?u?d?v?v?̂??̂??܂܂??B?Y???\?t?g?E?F?A???g?p???Ă???ꍇ?ɂ͐v???ɃA?b?v?f?[?g??K?p???邱?Ƃ??]?܂??B?i2022/6/3?j

Firefox???o?[?W????100?Ɂ@??17?N?̃??S?ϑJ??U??Ԃ铮??????J
Chrome?ɑ????AFirefox???o?[?W????100?ɂȂ????B?f?X?N?g?b?v?łœ?????s?N?`???[?C???s?N?`???[?ɂ??Ă???????\???ł???@?\?Ȃǂ??ǉ????ꂽ?BMozilla??17?N?̃??S?ϑJ??U??Ԃ铮??????J?????B?i2022/5/4?j

?uNHK?v???X?v?A?uFirefox?v?ł̎??????s?\?Ɂ@5??23??????
?I?????C????NHK?̔ԑg???????ł???uNHK?v???X?v?̓??????ύX????Ɣ??\?????B5??23???ȍ~?A?????u???E?U???uMicrosoft Edge?v?uGoogle Chrome?v?uSafari?v?̍ŐV?łɌ??肷??B?i2022/5/2?j

PayPay??s?AFirefox?̃T?|?[?g??3??25???ŏI???@?uIE??????Ƃ́v?ƒQ???̐?
IE???ߓ????ɑΏۊO?ƂȂ?A?Ȍ?AWindows?ł̐???????Edge??Chrome?݂̂ƂȂ?܂??B?i2022/3/18?j

Firefox?AThunderbird?ɐ[???x?u?ً}?v?̐Ǝ㐫?@?????Ƀo?[?W?????̊m?F??
?uFirefox?v?ƁuThunderbird?v?Ɂu?ً}?v?iCritical?j?̐Ǝ㐫???????????B???ɍL?????p???m?F????Ă??蒍?ӂ??K?v???B?Y?????鐻?i???g???Ă???ꍇ?ɂ͒????ɃA?b?v?f?[?g??K?p???邱?Ƃ??]?܂??B?i2022/3/8?j

Apple?AGoogle?AMicrosoft?AMozilla??Web???P?uInterop 2022?v?ŋ???
Apple?AGoogle?AMicrosoft?AMozilla?́AWeb???P?̎??g?݁uInterop 2022?v?𔭕\?????B??N?́uCompat 2021?v??Apple???Q???????`???B?????̃x???`?}?[?N??Safari?AChrome?AEdge?AFirefox??Web?W???K????Ԃ?]??????B?i2022/3/6?j

2000?N???ė??H?@?Ԃ??Ȃ??o?[?W?????g100?h?ɂȂ?Chrome??Firefox?Ɂu???X?N????v??Mozilla???x??
Web?u???E?U?uGoogle Chrome?v?ƁuFirefox?v???A?Ԃ??Ȃ??o?[?W????100?ɃA?b?v?f?[?g?????B?o?[?W?????̌?????2??????3???ɕς?邽?߁A???Ắu2000?N???v?Ɠ??????A?V?X?e???ɕs???????????\????????Ƃ??āA??Mozilla?͒??ӊ??N???Ă???B?i2022/2/22?j

Firefox?ɐ[???x?u?d?v?v?̐Ǝ㐫?@?v???ɃA?b?v?f?[?g??
Firefox 97??Firefox ESR 91.6?????J???ꂽ?B?????̐Ǝ?i???????Ⴍ?j?????C??????Ă???A????͐[???x???u?d?v?v?iHigh?j?ɕ??ނ????BFirefox???g?p???Ă???ꍇ?ɂ͍ŐV?łɃA?b?v?f?[?g???邱?Ƃ??]?܂??B?i2022/2/10?j

VR?u???E?U?uFirefox Reality?v?I???@Igalia?́uWolvic?v?Ɍp??
Mozilla??VR?w?b?h?Z?b?g????Web?u???E?U?uFirefox Reality?v?̒񋟂??I??????B?Z?p?̓I?[?v???\?[?X???Igalia???????p???AXR???T?|?[?g????Web?u???E?U?uWolvic?v???Ԃ??Ȃ??????[?X????B?i2022/2/4?j

Firefox?̐ڑ???Q???????A???????Ӎ߁@??????HTTP/3?̃o?O
1??13???ߌ?5?????납?甭?????Ă????AWeb?u???E?U?uFirefox?v?̃l?b?g?ւ̐ڑ???Q?ɂ??āAFirefox?̌???Twitter?A?J?E???g??13???ߌ?10??6???Ɂu?ċN??????ΐ???ɖ߂?v?ƕ??????@?𓊍e???uFirefox?ŏ?Q?????????A?\???󂲂????܂???ł????v?ƎӍ߂????B?i2022/1/14?j

Firefox?????ˑR?C???^?[?l?b?g?ɂȂ???Ȃ??Ȃ??Q?????????i?????????@????j
?S???E?I?ɋN?????Ă????Q?̂悤?ł??B?i2022/1/13?j

Firefox?̗??p?҂???u?ˑR?l?b?g?ɂȂ???Ȃ??Ȃ????v?񍐂??E???@?e???͈͂͐??E????
Web?u???E?U?uFirefox?v?̗??p?҂???u?ˑR?d???Ȃ?l?b?g?ɂȂ???Ȃ??Ȃ????v?Ƃ???????SNS??ŏオ???Ă???B?????̕񍐂́A13???ߌ?4??50?????납?琢?E???ő??????œ??e????Ă???A???{?????ł????l?̖?肪???????Ă???B?i2022/1/13?j

?uFirefox 95?v???????o??I?@?T?C?g?????ƁuRLBox?v?Ŏ????ł߂?
??Mozilla Foundation??12??7???i???n???ԁj?APC????Web?u???E?U?uFirefox?v?̐V?łƂȂ?o?[?W????95?̒񋟂??n?߂??B????̐V?o?[?W????????AMicrosoft Store?Ńv???O???????_?E?????[?h?ł???悤?ɂȂ????B?i2021/12/9?j

Bing?ŁuChrome?v?ƌ????????Edge???񂪔ߖ???????\?\?߂??????m?????b??? ?@?u?C?????͂킩?邯?ǁv?u?K?v?Ȏ???????񂾂?c?c?v
Firefox??Safari?AOpera??Vivaldi?Ō??????Ă??????????B?i2021/12/1?j

Tech TIPS?F
?ЂƎ?ԑ????????AWindows 11?̃f?t?H???g?u???E?U?ύX
Windows 11?ł́A?f?t?H???g??Web?u???E?U??Microsoft Edge?ɂȂ??Ă???B????ɁAGoogle Chrome??Mozilla Firefox?Ȃǂ̑???Web?u???E?U?ɕύX????̂??ʓ|?ɂȂ??Ă???B?f?t?H???g???AMicrosoft Edge???瑼??Web?u???E?U?ɕύX??????@???Љ?悤?B?i2021/11/26?j

Firefox??Thunderbird?ɕ????̏d?v?x?u???v?̐Ǝ㐫?A?A?b?v?f?[?g???Ăъ|??
Firefox??Thunderbird?ɐƎ㐫?????????ꂽ?B?ň??̏ꍇ?A?V?X?e?????䌠??D???郊?X?N?????邽?߁A?}???őΉ????Ăق????B?i2021/11/4?j

Firefox?̃A?b?v?f?[?g??j?Q????A?h?I???A45???l?ȏオ?C???X?g?[????
Mozilla??Firefox?̃A?b?v?f?[?g??W?Q????A?h?I????45??5000?l?̃??[?U?[???C???X?g?[???????\????????Ɠ`?????B?Y???̃A?h?I?????C???X?g?[?????????ǂ?????v???ɒ??????A?C???X?g?[?????Ă????ꍇ?͍폜???Ăق????B?i2021/10/28?j

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