Setting up the profile
We will create a new profile to be used for testing. A profile is simply a set of configuration that Firefox will use when you start it. You can use your existing profile as well, but I opted to create a new one so that the Firefox instance for testing will be as pristine as possible (i.e. no unnecessary plugins, no bookmarks, etc). A note: I am working on a Windows machine.
- Bring up the command prompt and start the profile chooser by typing in
firefox.exe -ProfileManager -no-remote
- Click on
- Enter the profile name you wish to use. I suggest you include the name of your project instead of just naming it "Test".
- Click on
Choose Folderand navigate to the folder where you wish to store the profile files. Make sure you can access that folder easily; write the path down because you will need this in JUnit.
- Click on
- You will be brought back to the profile chooser dialog. Click on the
Don't ask at start-up checkbox.
Note: To make Firefox use your original configurations when you are browsing, bring up the profile chooser dialog, choose the profile named default, and start Firefox.
Now we will configure Firefox to behave like how we want it to.
Tabs tab Content tab (Optional) Privacy tab Advanced tab
- From the profile chooser dialog, highlight your test profile and click the
Start Firefox button.
- (Optional if Firefox is not your default browser) Uncheck
"Always perform this check when starting Firefox".
- Click on
Tools > Options. We will go through the steps for each tab in the
- General tab
- Under Startup, choose
Show a blank pagefrom the
When Firefox startsdropdown.
- Under Downloads, uncheck the
Show the Downloads window when downloading a filecheckbox.
- Still under Downloads, click on
Save files tooption. Navigate to the folder where you want Firefox to put downloaded files. Take note of this folder as well because we will use this in JUnit.
Open new windows in a new tab insteadand uncheck all warnings.
Block pop-up windows.
- Under History, choose
Never remember historyfrom the
- Under the General sub-tab, uncheck
Use autoscrollingand uncheck
Always check to see if Firefox is the default browser on startup.
- If you will be using a proxy server, choose the Network sub-tab and input your proxy settings there.
Adding MIME Types
Now we need to tell Firefox how to handle downloading each specific type of file.
- Navigate to the folder where you saved your custom profile and open the
mimeTypes.rdffile in a text editor.
- Add the following lines towards the end of the file, right above the closing
- There are two ways to add MIME types to the mimeTypes.rdf file.
<RDF:Description RDF:about="urn:mimetype:handler:text/plain" NC:alwaysAsk="false" NC:saveToDisk="true">
<RDF:Description RDF:about="urn:mimetype:text/plain" NC:value="text/plain" NC:editable="true" NC:fileExtensions="txt" NC:description="Text Document">
What we did there is we told Firefox to directly download files with MIME type
text/plain. If you need to test downloading other file types like .doc or .pdf, you would need to add their MIME types to this file too.
- Via the Firefox Applications GUI
- From Firefox, choose
Tools > Options > Applications
- If you have previously downloaded a file of the required MIME type, look for it in the list. In the dropdown menu on the right, under
- If the MIME type you want is not in the list, you would need to go to a website that allows you to download a sample file. If the file downloads automatically without showing the download pop-up, you would not have to do anything. If the pop-up shows up, activate the
Save Fileradio button and check the
Do this automatically for files like this from now oncheckbox and click
- Manually editing the file Note: This is generally not the advised way to edit the file due to its complexity. Care is required!
- Open the
- Look for the
RDF:Seqnode and add your desired MIME type.
RDF: Descriptionnodes for that MIME type.
<RDF:Description RDF:about="urn:mimetype:application/pdf" NC:fileExtensions="pdf" NC:description="Adobe Acrobat Document" NC:value="application/pdf" NC:editable="true">To use this profile in our Selenium test:
<RDF:Description RDF:about="urn:mimetype:handler:application/pdf" NC:saveToDisk="true" NC:alwaysAsk="false" />
FirefoxProfile profile = new FirefoxProfile(new File("path/to/your/profile"));And you're done. :)
// We can also set the download folder via code
File testFile = new File("path/to/download/folder");
String downloadFolder = testFile.getAbsolutePath();
WebDriver driver = new FirefoxDriver(profile);