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How To Fix "source File Could Not Be Read" Error On Firefox?

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By Author: Elisa Wilson
Total Articles: 273
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While attempting to download a file from the internet, Firefox may show a “File could not be saved because the source file could not be read” error message. In ‘File,’ the file’s path will be mentioned – like appdata\local\temp, for instance. It can also ask you to attempt again later or contact the server administrator. If you encounter this problem even in Firefox Quantum, here is what you require to do to solve the issue. Here are some steps mentioned below.

Check the Internet Connection

You should begin fixing the issue by checking the Internet network. Moreover, in case you should access different sites without any issues, you can attempt other fixes to solve the Firefox issue.

Locate and Remove Damaged Compreg.dat File

To locate and remove the damaged Compreg.dat file, follow these on-screen steps mentioned below:

At first, launch the Firefox browser on your system.
Thereafter, input ‘about:support’ in the address bar and press the Enter key.
Once you get the tab and locate the ‘Open Folder’ option to invoke the folder of ‘Firefox profile.’
... You should shut the Firefox.
Now reach the profile folder of Firefox and select the ‘Compreg.dat,’ then right click on it.
Finally, click on the Delete button through the pull-down menu.
Disable the Firefox Extensions

To disable the Firefox extensions, follow these on-screen steps mentioned below:

Go to the Firefox browser and launch it.
Then reach the menu and click on it.
After that, click on the ‘Add-ons’ option and then choose ‘Extension.’
Later, hit the Disable button beside the installed extensions.
Additionally, you should select the Remove button to remove them entirely.
Check Whether Attributes for Places.SQLite is not Set to Read-only

To check whether attributes for Places.SQLite is not set to read-only, follow these on-screen steps mentioned below:

Navigate to the Firefox browser and invoke it on the system.
Afterward, insert ‘about:support’ in the URL bar and hit the Enter button.
You should click on the button ‘open Folder’ to launch the folder of ‘Firefox Profiles’ into the File Explorer.
Once you see the folder, locate the ‘places.sqlite’, right-click on it, then pick the Properties option through the menu.
Go to the ‘places.sqlite Properties’ screen and untick the ‘Read-only’ box into the Attributes field.
Now, hit the Apply and OK button to apply the changes.
Reset the Firefox Browser

To reset the Chrome Firefox browser, follow these on-screen steps mentioned below:

Reach the Firefox browser and open it on your system.
Thereafter, insert ‘about:support’ into the URL panel and hit the Enter key.
You will get the tab of ‘Troubleshooting Information’ and locate the button of Refresh Firefox.
Now, you will see a dialog screen prompt, hit the ‘Refresh Firefox’ option.
Reinstall the Firebox Browser

To reinstall the Firefox browser, follow these on-screen steps mentioned below:

Go to the Windows search bar on your system.
Afterward, input ‘control panel’ in it and hit the Enter button.
Then select the ‘Programs’ option.
You should click on the ‘Uninstall a Program’ option.
Thereafter, locate the entry of ‘Mozilla Firefox’ and right-click on it.
Later, hit the Uninstall button.
Now, pursue these steps to complete the procedure.
Finally, visit official download page of Firefox and install the application again.
Elisa Wilson is an avid technical blogger, a magazine contributor, a publisher of guides at mcafee.com/activate and a professional cyber security analyst. Through her writing, she aims to educate people about the dangers and threats lurking in the digital world .

Source :- https://computersoftware410578901.wordpress.com/2021/07/23/how-to-fix-source-file-could-not-be-read-error-on-firefox/

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