Fungování této stránky je z důvodu údržby dočasně omezeno. Pokud žádný článek nápovědy nevyřeší váš problém a potřebujete se zeptat na další řešení, napište nám na Twitter @FirefoxSupport nebo Reddit /r/firefox.

Avatar for Username

Prohledat stránky podpory

Vyhněte se podvodům. Za účelem poskytnutí podpory vás nikdy nežádáme, abyste zavolali nebo poslali SMS na nějaké telefonní číslo nebo abyste sdělili své osobní údaje. Jakékoliv podezřelé chování nám prosím nahlaste pomocí odkazu „Nahlásit zneužití“.

Zjistit více

Toto vlákno bylo archivováno. Pokud potřebujete pomoci, založte prosím nový dotaz.

Doing refresh messes up Firefox

Corwin99
Corwin99
more options

Did a refresh of firefox from within help menu. Now I find that some pages don't load properly no formatting or images. Only text and links. I believe that its only https pages.

Did a refresh of firefox from within help menu. Now I find that some pages don't load properly no formatting or images. Only text and links. I believe that its only https pages.

Všechny odpovědi (3)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

It is possibly that you need to recover the certificate that is send by your security software.

You can do that by copying the cert8.db from the "Old Firefox Data" folder on the desktop to the current Firefox profile folder.

You can use this button to go to the current Firefox profile folder:

There is security software like Avast and Kaspersky and BitDefender and ESET that intercepts secure connections and sends their own certificate or that incorporates special web shielding features that can block content.

When you use the refresh feature in Firefox then a new profile is created and some personal data (bookmarks and history, form data, tabs) is automatically imported. The current profile folder will be moved to an "Old Firefox Data" folder on the desktop. Installed extensions and other customizations (toolbars, prefs) that you have made are lost and need to be redone.

It is possible to recover data from the "Old Firefox Data" folder on the desktop, but be cautious not to copy corrupted files to avoid carrying over problems.

Corwin99
Corwin99 Autor dotazu
more options

I copied the Old Firefox data to a brand new profile and that worked a treat.

From the browser's behaviour, I suspected the certificate and good to also know how to just restore that.

Thanks for your help.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Hi Corwin99, do you know if the issue was Firefox not having the "root" certificate for your security software? Since this identical issue of a "man in the middle" can occur with malware, it would be ideal if you could confirm that.

Typically, you just need to call up a certificate on a site and check the issuer name/organization to see if it is something you expect (e.g., Kaspersky, ESET, Avast) or something you don't expect.

  • right-click (on Mac Ctrl+click) a blank area of the page and choose View Page Info > Security > "View Certificate"
  • (menu bar) Tools > Page Info > Security > "View Certificate"
  • click the padlock or "i" icon in the address bar, then the ">" button, then More Information, and finally the "View Certificate" button

In the dialog that opens, the "Issued by" section is the key one to check.