Thunderbird Beta
Test new features and fixes in the most stable pre-release build of Thunderbird.
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Found 1044 results for test for All Products
Participate in early testing (foxfooding)
Do you enjoy testing new products? Then you might be interested in our foxfooding program.
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Test versions of Firefox for your organization
Test future versions of Firefox before they are released to the public by downloading Firefox Beta, or Nightly.
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Profiling Thunderbird Performance
Table of Contents 1 Step 1 - Preparing performance recording in Thunderbird 2 Step 2 - Recording a performance profile 3 Step 3 - Saving and sharing a performance profile 3.1 Old versions of Thunderbird 4 Profiling Thunderbird startup and shutdown Step 1 - Preparing performance recording in Thunderbird The performance recorder is part of the Developer Toolbox in Thunderbird. Before you start your recording, prepare as much as possible the scenario to be tested in Thunderbird. In Thunderbird’s main window, open the Developer Toolbox: Press Ctrl + Shift + ICommand + Shift + I, or click ≡ > Tools > Developer Tools.
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Thunderbird Daily
Test new features and fixes in the least stable channel of Thunderbird. This is where development and testing begin, and new features are developed.
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Download the Beta and Nightly versions of Firefox Focus for Android
You can download the Beta and Nightly versions of Firefox Focus for Android to your mobile device. Once you've downloaded the apps and begin testing, you can report any issues you encounter. Table of Contents 1 Download Firefox Focus for Android Beta 2 Download Firefox Focus for Android Nightly Download Firefox Focus for Android Beta Download Firefox Focus Beta to experience new functionality and bug fixes prior to these being released to production.
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Firefox Labs - Explore experimental features in Firefox
Discover and test experimental features with Firefox Labs, accessible directly from your Firefox settings.
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Best practices for installing and updating Firefox
Disable automatic updates through the DisableAppUpdate policy, and get Firefox beta builds to test features in your environment before deployment.
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Firefox Semantic History Search test day event is not working
Hello! I saw that the Test day event had started. In Firefox Beta, I entered messaging-system-action.testday in about:config, put it on a string and set the value to testday as it said in the instructions. When I restarted Firefox, the welcome window did not appear and there was also no letter S next to the search as it should be. Please help! Thanks for the answers! Vexi
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Testing Firefox performance on script-heavy fan-made websites
Hello everyone, While testing some fan-made game community websites, I noticed that Firefox handles them a bit differently compared to Chrome or Edge. For example, I checked https://nullsbrawl.tech/ (not an official site, just a community project) and saw that it loads more slowly and sometimes behaves differently in Firefox. This made me curious: Does Firefox have different handling for script-heavy or unofficial community websites? What tools in Firefox Developer Tools would you recommend for debugging performance issues?
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