blocks|key|1101991|text|最新的Firefox+48和SeleniumWebdriver3.0.0解决了这个特殊问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1101992|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

The latest Firefox 48 and Selenium Webdriver 3.0.0 solved this particular issue.

blocks|key|2147300|text|我经历过这种事，而且似乎总是很随意的。这是一个很长的机会，但尝试改变路径，然后把原来的，这是我在过去的工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2147301|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I've had this happen and it always seems to be very random. This is a long shot but try changing the path and then putting the original back this has worked for me in the past.

blocks|key|2147351|text|我也遇到了类似的问题，我发现火狐47和WebDriver+(JS和其他语言)在GG群中有很多问题。你现在唯一的解决办法可能是降级-+https://ftp.mozilla.org/pub/firefox/releases/46.0.1/。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2147352|无可否认，降级并没有解决我的问题，而是ymmv。|2147353|entityMap|0|LINK|mutability|MUTABLE|url|https://groups.google.com/forum/#!forum/selenium-users|1|https://ftp.mozilla.org/pub/firefox/releases/46.0.1/^0|13|3|0|1U|1G|1|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]|$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

I'm having a similar problem and see that there seem to be a wealth of problems with Firefox 47 and WebDriver (JS and other languages) being discussed in the <a href="https://groups.google.com/forum/#!forum/selenium-users" rel="nofollow">GG group</a>. Your only solution for now might be to downgrade - <a href="https://ftp.mozilla.org/pub/firefox/releases/46.0.1/" rel="nofollow">https://ftp.mozilla.org/pub/firefox/releases/46.0.1/</a>

Admittedly, downgrading did not solve my problem, but ymmv

blocks|key|1099835|text|我也遇到了同样的问题，并通过从https://www.mozilla.org/en-US/firefox/developer/下载Developer来解决它。显然，在使用firefox的开发者版本方面存在一些冲突。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1099836|在node_modules/selenium-webdriver/firefox/binary.js，第99行中，以下代码：|1099837|​|1099838|let+exe+=+opt_dev
++++++++?+'/Applications/FirefoxDeveloperEdition.app/Contents/MacOS/firefox-bin'
++++++++:+'/Applications/Firefox.app/Contents/MacOS/firefox-bin';
++++found+=+io.exists(exe).then(exists+=>+exists+?+exe+:+null);|code-block|syntax|javascript|1099839|1099840|选择了DeveloperEdition，但我没有它，这导致发现为null，然后在第115行中抛出一个错误。|1099841|entityMap|0|LINK|mutability|MUTABLE|url|https://www.mozilla.org/en-US/firefox/developer/^0|F|1C|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@$A|Y|B|Z|1|10]]|C|$]]|$1|D|3|E|5|6|7|11|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|12|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|13|8|@]|9|@]|C|$K|L]]|$1|M|3|G|5|6|7|14|8|@]|9|@]|C|$]]|$1|N|3|O|5|6|7|15|8|@]|9|@]|C|$]]|$1|P|3|-4|5|6|7|16|8|@]|9|@]|C|$]]]|Q|$R|$5|S|T|U|C|$V|W]]]]

I had the same problem and solved it by downloading the Developer Edition from <a href="https://www.mozilla.org/en-US/firefox/developer/" rel="nofollow">https://www.mozilla.org/en-US/firefox/developer/</a>. Apparently there is some conflict regarding using the developer edition of firefox. 
In node_modules/selenium-webdriver/firefox/binary.js, line 99, this code :

<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>let exe = opt_dev
 ? '/Applications/FirefoxDeveloperEdition.app/Contents/MacOS/firefox-bin'
 : '/Applications/Firefox.app/Contents/MacOS/firefox-bin';
 found = io.exists(exe).then(exists =&gt; exists ? exe : null);</code></pre>
</div>
</div>


chose the DeveloperEdition, but I didn't have it, which caused found to be null and later an error is thrown in line 115.

blocks|key|1394922|text|您的Firefox是否没有安装在默认位置？我的系统安装在C:\Users\(username)\AppData\Local\Mozilla+Firefox\中，我得到了与您相同的错误消息。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1394923|在浏览代码(谢谢@achie)时，我在node_modules\selenium-webdriver\firefox\index.js中找到了以下内容|1394924|*+On+Windows+and+OSX,+the+FirefoxDriver+will+search+for+Firefox+in+its
*+default+installation+location:
*
*+*+Windows:+C:\Program+Files+and+C:\Program+Files+(x86).
*+*+Mac+OS+X:+/Applications/Firefox.app
*
*+For+Linux,+Firefox+will+be+located+on+the+PATH:+`$(where+firefox)`.|code-block|syntax|javascript|1394925|换句话说，在Windows上将Firefox目录放置在PATH变量中甚至没有任何用处。|1394926|但是源代码继续说：|1394927|*+You+can+configure+WebDriver+to+start+use+a+custom+Firefox+installation+with
*+the+{@link+Binary}+class:
*
*+++++var+firefox+=+require('selenium-webdriver/firefox');
*+++++var+binary+=+new+firefox.Binary('/my/firefox/install/dir/firefox-bin');
*+++++var+options+=+new+firefox.Options().setBinary(binary);
*+++++var+driver+=+new+firefox.Driver(options);|1394928|就我而言，这就变成了：|1394929|var+firefox+=+require('selenium-webdriver/firefox');
var+binary+=+new+firefox.Binary('C:\\Users\\(username)\\AppData\\Local\\Mozilla+Firefox\\firefox.exe');
var+options+=+new+firefox.Options().setBinary(binary);
var+driver+=+new+firefox.Driver(options);|1394930|Selenium现在找到了我的Firefox，但是我得到了下一个错误消息：|1394931|Error:+Timed+out+waiting+for+the+WebDriver+server+at+http://127.0.0.1:53785/hub|1394932|我也尝试过var+driver+=+new+webdriver.Builder().forBrowser('firefox').setFirefoxOptions(options).build();，但这并没有什么区别。|1394933|希望这能帮到你更远一点！|1394934|entityMap^0|S|1E|0|J|1C|0|0|0|0|0|0|0|0|0|5|2M|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1C|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1D|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|1E|8|@]|D|@]|E|$]]|$1|Q|3|R|5|J|7|1F|8|@]|D|@]|E|$K|L]]|$1|S|3|T|5|6|7|1G|8|@]|D|@]|E|$]]|$1|U|3|V|5|J|7|1H|8|@]|D|@]|E|$K|L]]|$1|W|3|X|5|6|7|1I|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|J|7|1J|8|@]|D|@]|E|$K|L]]|$1|10|3|11|5|6|7|1K|8|@$9|1L|A|1M|B|C]]|D|@]|E|$]]|$1|12|3|13|5|6|7|1N|8|@]|D|@]|E|$]]|$1|14|3|-4|5|6|7|1O|8|@]|D|@]|E|$]]]|15|$]]

Could it be that your Firefox is not installed in the default location? Mine is installed in <code>C:\Users\(username)\AppData\Local\Mozilla Firefox\</code>, and I get the same error message as you.

Browsing the code (thanks @achie), I found the following in <code>node_modules\selenium-webdriver\firefox\index.js</code>:

<pre><code>* On Windows and OSX, the FirefoxDriver will search for Firefox in its
* default installation location:
*
* * Windows: C:\Program Files and C:\Program Files (x86).
* * Mac OS X: /Applications/Firefox.app
*
* For Linux, Firefox will be located on the PATH: `$(where firefox)`.
</code></pre>

In other words, it's not even any use to put the Firefox directory in the PATH variable on Windows.

But the source code continues:

<pre><code>* You can configure WebDriver to start use a custom Firefox installation with
* the {@link Binary} class:
*
* var firefox = require('selenium-webdriver/firefox');
* var binary = new firefox.Binary('/my/firefox/install/dir/firefox-bin');
* var options = new firefox.Options().setBinary(binary);
* var driver = new firefox.Driver(options);
</code></pre>

In my case, that becomes:

<pre><code>var firefox = require('selenium-webdriver/firefox');
var binary = new firefox.Binary('C:\\Users\\(username)\\AppData\\Local\\Mozilla Firefox\\firefox.exe');
var options = new firefox.Options().setBinary(binary);
var driver = new firefox.Driver(options);
</code></pre>

Now Selenium finds my Firefox, but I get a next error message:

<pre><code>Error: Timed out waiting for the WebDriver server at http://127.0.0.1:53785/hub
</code></pre>

I also tried <code>var driver = new webdriver.Builder().forBrowser('firefox').setFirefoxOptions(options).build();</code>, but that didn't make any difference.

Hope this helps you a bit further!

blocks|key|2147440|text|Mozilla的工作人员建议使用Marionette驱动程序，因为SeleniumWebDriver2.53和Firefox+47/48存在启动崩溃问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2147441|https://developer.mozilla.org/en-US/docs/Mozilla/QA/Marionette/WebDriver|offset|length|2147442|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|20|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

The folks at Mozilla are recommending using the Marionette driver as there is a start up crash issue with Selenium Webdriver 2.53 and Firefox 47/48

<a href="https://developer.mozilla.org/en-US/docs/Mozilla/QA/Marionette/WebDriver" rel="nofollow">https://developer.mozilla.org/en-US/docs/Mozilla/QA/Marionette/WebDriver</a>

After the Firefox self-upgraded to version 47, Selenium stopped working.
I followed the Javascript (Node.js) steps suggested by Mozilla regarding the Marionette driver, but the console says that it can't find Firefox on my current system, however the path to the browser is fine and standard.
The error is "Could not locate Firefox on the current system"
at C:\Users\\node_modules\selenium-webdriver\firefox\binary.js:115:11

If it matters, I use WebdriverJS.

Could not locate Firefox on the current system (Firefox 47)

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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Firefox自升级到47版后，Selenium就停止工作了。我遵循了Mozilla建议的关于Marionette驱动程序的Javascript (Node.js)步骤，但是控制台说在我当前的系统中找不到Firefox，但是浏览器的路径是好的和标准的。错误是“无法在当前系统上定位火狐”，位于C:\Users\node_modules\selenium-webdriver\firefox\binar

问无法在当前系统中找到Firefox (Firefox 47)
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回答 6

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