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You can create an enum with 2 parameters (exe path, download page)

There are 2 possible ways you can achieve that:

• Add a key listener on your submitHandler:

Like you can see here, register tells Python where the webbrowser with the name "firefox" can be found. You have to pass an instance (BackgroundBrowser) or a constructor. In the first code snippet you pass None as the constructor, which is not a valid browser class, it can thus not find/create the browser and cannot register it. In the second snippet you pass your BackgroundBrowser instance and thus it can register this valid browser as "firefox" and you can run it later.

The 5th line (webbrowser.BackgroundBrowser...) in the first snippet does basically nothing, you are supposed to give that as an argument to register like you do in the second snippet.

As the keyword entry is a user-defined shortcut, you can't set it in your opensearch.xml.

XSS stands for Cross-Site Scripting these are attacks. A type of injection, in which malicious scripts are injected into otherwise benign and trusted websites. XSS attacks occur when an attacker uses a web application to send malicious code, generally in the form of a browser side script, to a different end user.

We want to prevent this from happening. Since you are using PHP this won't be resolved using http://htmlpurifier.org/. You'll have to use another method. What you can try are the following options:

• Encrypt your values inside the echo statement.
• Your application code should never output data received as input directly to the browser without checking it for malicious code.

These are simple steps to prevent an XSS attack from happening:

1. Train and maintain awareness.

• To keep your web application safe, everyone involved in building the web application must be aware of the risks associated with XSS vulnerabilities. You should provide suitable security training to all your developers, QA staff, DevOps, and SysAdmins. You can start by referring them to this page.

1. Don’t trust any user input.

• Treat all user input as untrusted. Any user input that is used as part of HTML output introduces a risk of an XSS. Treat input from authenticated and/or internal users the same way that you treat public input.

1. Use escaping/encoding.

• Use an appropriate escaping/encoding technique depending on where user input is to be used: HTML escape, JavaScript escape, CSS escape, URL escape, etc. Use existing libraries for escaping, don’t write your own unless absolutely necessary.

1. Sanitize HTML.

• If the user input needs to contain HTML, you can’t escape/encode it because it would break valid tags. In such cases, use a trusted and verified library to parse and clean HTML. Choose the library depending on your development language, for example, HtmlSanitizer for .NET or SanitizeHelper for Ruby on Rails.

1. Set the HttpOnly flag.

• To mitigate the consequences of a possible XSS vulnerability, set the HttpOnly flag for cookies. If you do, such cookies will not be accessible via client-side JavaScript.

1. Use a Content Security Policy.

• To mitigate the consequences of a possible XSS vulnerability, also use a Content Security Policy (CSP). CSP is an HTTP response header that lets you declare the dynamic resources that are allowed to load depending on the request source.

1. Scan regularly (with Acunetix).

• XSS vulnerabilities may be introduced by your developers or through external libraries/modules/software. You should regularly scan your web applications using a web vulnerability scanner such as Acunetix. If you use Jenkins, you should install the Acunetix plugin to automatically scan every build.

I'll include two short examples of encoding in PHP here: You could try the htmlspecialchars I suggested to you earlier. I'll give an example with the line of code you gave is on your question.

Add vertical-align: top; to your .article CSS (the default is baseline):

Note: Firefox 69 and new versions will not support userChrome.css and userContent.css by default unless preference is set by the user.

To use userChrome.css follow below steps:

• First type about:config in url/address bar
• Then search for the property named toolkit.legacyUserProfileCustomizations.stylesheets
• Set it to True and restart firefox

You missed a line that is very important for this to work. Define a notification with the Notification constructor in which you enter the title and options variables.

you'll have to use xpath rather than css in this case.