"Yaji Uma no Mori" will tell you a wide range of topics that are not particular about news reviews.
The other day, the major version of the main browser will be "100" this year, and the version number will go up from two digits to three digits, which may cause a problem on some websites where the version check processing is not appropriate.We delivered the topic.
関連記事May I get an error?Prepare for "Version 100"!~ CANARY version "Chrome" reaches V100
At this time, I told you how to force "version 100" in "Googe Chrome" and check the compatibility of the website, but we did not guide the method in "Firefox" yet.According to the article of the official blog "Mozilla Hacks" for developers released after that, similar options have been added to "Firefox", so I would like to introduce them this time.
Version 100 in Chrome and Firefox --Mozilla Hacks -The Web Developer Blog
The option to force "Firefox" to "Version 100" is available in "Firefox Nightly".Let's get it from the preview version "Firefox" distribution site.The latest version as of the time of writing is "99.0a1 ".
Please use Firefox release for future desktops, Android, and iOS.
「Firefox Nightly」Next, open "Firefox Nightly" and access the [Advanced] screen (about: config).Enter "100" in the search box and "GENERAL.useragent.Find a flag called "ForceverSion100" and set the value to "True" (I tried it in the editorial department and it was "true" in the initial state).
[高度な設定]画面にアクセス。アドレスバーに「about:config」と入力して[Enter]キーを押す。警告は無視してよい検索ボックスに「100」などと入力して、「general.useragent.forceVersion100」というフラグを探し、値を「true」にEnter the following on the [Console] tab of the "Web Development Tool" ([Ctrl] + [Shift] + [I] key) as follows.
> navigator.userAgent# フラグが true の場合"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0"# フラグが false の場合"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0"
フラグが true の場合。「yahoo.com」では「Webブラウザーを最新版にしろ」という警告メッセージが誤って表示されるフラグが false の場合When Mozilla is discovered with "version 100" compatibility issues, it seems that if it is fatal, the workaround is applied to "Firefox".They can be checked on the "about: compat" screen, but if possible, we want the website administrator to deal with it without bothering the developer.
"Firefox 100" will be released on May 3, 2022, US time.