Why do XML Parsing errors prevent downloads in Firefox Browser 72.0.1(64-bit) ?
Recently I've been prevented from downloading bank statements from HSBC and some important documents from HMCTS. The full error message for the latter is imaged below. Help please - I LIKE Firefox ! What went wrong?
Usually statements would be in PDF format, not in XML format, so that error is puzzling on several levels.
If you try downloading the same documents in other browsers, do you get PDFs?
If a site is generally known to work in Firefox, these are standard suggestions to try when it stops working normally:
Double-check content blockers: Firefox's Content Blocking/Tracking Protection feature, and extensions that counter ads and tracking, may break websites that embed third party content (meaning, from a secondary server).
(A) Do you see a shield icon toward the left end of the address bar, near the lock icon? More info on managing the Tracking Protection feature in this article: Enhanced Tracking Protection in Firefox for desktop (before Firefox 70: Content blocking).
(B) Extensions such as Adblock Plus, Blur, Disconnect, Ghostery, NoScript, Privacy Badger, uBlock Origin or uMatrix should provide toolbar buttons to manage blocked content in a page. There may or may not be a number on the icon indicating the number of blocked items; you may need to click the button to see what's going on and test whether you need to make an exception for this site.
Cache and Cookies: When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.
(1) Clear Firefox's Cache
If you have a large hard drive, this might take a few minutes.
(2) Remove the site's cookies (save any pending work first). While viewing a page on the site, click the lock icon at the left end of the address bar. After a moment, a "Clear Cookies and Site Data" button should appear at the bottom. Go ahead and click that.
In the dialog that opens, you will see one or more matches to the current address so you can remove the site's cookies individually without affecting other sites.
Then try reloading the page. Does that help?
Testing in Firefox's Safe Mode: In its Safe Mode, Firefox temporarily deactivates extensions, hardware acceleration, and some other advanced features to help you assess whether these are causing the problem.
If Firefox is not running: Hold down the Shift key when starting Firefox. (On Mac, hold down the option/alt key instead of the Shift key.)
If Firefox is running: You can restart Firefox in Safe Mode using either:
- "3-bar" menu button > "?" Help > Restart with Add-ons Disabled
- (menu bar) Help menu > Restart with Add-ons Disabled
and OK the restart.
Both scenarios: A small dialog should appear. Click "Start in Safe Mode" (not Refresh).
By the way, Firefox 73.0.1 is available now. Bitdefender users reported that the latest updates combined leads to crashes, so if you use Bitdefender, you might need to wait for the next Bitdefender update before updating Firefox. Hopefully it's imminent.
This message can be caused by a broken Firefox installation where not all files got updated properly and Firefox wasn't able to find a string translation for a specific label.
Try to update Firefox to the current Firefox release to see if that fixes this.