In this Firefox troubleshooting tutorial, we will learn to fix the Firefox XULRunner error problem.
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| Firefox XULRunner Error Platform Version Not Compatible | How To Fix |
An error message concerning XPCOM missing or platform version is frequently caused by a botched Firefox update, which leaves you with a mix of old and new files in the Firefox program folder. This can happen if security software has a hold on some of the files in the Firefox program folder, preventing Firefox from replacing all of them.
To verify that all files are replaced, perform a clean reinstall and delete the Firefox application folder. If the problem persists, you may have to temporarily disable security software.
Why am I seeing XULRunner: Error in Firefox?
XULRunner: Error: Platform version "Not Compatible" is not profile specific problem, but is all about the Firefox installation folder, and the only way to fix it is a clean reinstall that involves deleting the Firefox program folder to ensure a proper installation. If you have an issue with certain profiles, there is a problem with this profile.
How To Fix Firefox XULRunner Error: Platform Version Not Compatible?
There may be a few small steps to solve this problem and you just need to follow the steps without messing any. What we are going to do is a clean reinstallation for Firefox.
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| Type %localappdata% in the search bar. |
- First, we will be cleaning Firefox's data. To do that, we go to search and open Run.
- After that, we type %localappdata% in the search bar and click OK.
- In the window that opens find the Mozilla folder and delete it.
Now we are going to delete Firefox, but before we do that we need to download the Firefox setup to be able to install Firefox again.
- We open our browser and then, type "Firefox download" in the search bar.
- Go to the Firefox website and click Download Firefox.
- After doing this, we put the setup file on the desktop.
- We have downloaded the setup file.
Now we can uninstall Firefox from our computer. To do this,
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| Uninstall Firefox from our computer |
- Go to the search and open Control Panel.
- After opening Control Panel, click Uninstall a program.
- Find Mozilla Firefox among our programs and uninstall it.
- Click Next and then click Uninstall.
- Click Finish and close tab.
Now we will install Firefox again. To do that,
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| Install Firefox. |
- Double-click on Firefox Installer.
- Check the box here and click Re-install.
- Click on Save and continue if you want.
- The last thing we need to do is click on Refresh Firefox.
- Click Refresh Firefox and continue.
- We have completed the clean reinstallation.
FAQs: Firefox XULRunner Error
How can I fix Firefox not working?
- Start your computer again.
- Clear your cache and cookies.
- Relaunch Firefox in Troubleshooting Mode.
- Install Firefox again.
- Restart Firefox.
- Make a fresh Firefox profile.
- There are other options. Examine the browser's internals. Examine for problems caused by a faulty or incomplete Visual C++ installation.
How can I unfreeze Firefox?
If Firefox is open, use the Help menu to restart in Firefox Troubleshoot Mode: In the "Restart Firefox in Troubleshoot Mode" prompt that appears, click the menu button, click Help, pick Troubleshoot Mode, and then click Restart.
How Do I Clear Firefox's Cache?
- Tap the three dots in the bottom-right corner.
- Select "Settings."
- Find the option to "Delete browsing data."
- Select the data you wish to erase and then click "Delete browsing data."
Should I delete the cache in Firefox?
If you're wondering why your browser is so sluggish, You just need to clear up your temporary files and cache. Here's how to clear the cache in Firefox in Windows.
- Select Settings from the hamburger menu in the upper-right corner of the browser window.
- In the left menu panel, select Privacy & Security.
- Scroll down to Cookies and Site Data and press the Clear Data button.
- Uncheck the option for Cookies and Site Data but leave the box for Cached Web Content selected. Then click the Clear button.
Is Firefox more secure than Chrome?
Firefox is, in fact, a more secure browser than Chrome. It's totally open-source, so anybody may examine the technology that powers it. Furthermore, Firefox has a number of extra security safeguards to protect users from crypto-mining scripts, fingerprinting, phishing, and other threats.
I hope the tutorial was clear and useful for you.
Team, Technobroz
