Firefox 74

  



I installed the new Firefox 74 yesterday and about one out of 4 times new Firefox updates hose my Bookmark Toolbar - badly! This is the 4th time now! Took me about 2 hours of splicing other CSS files together to get the new version 74 to work! I didn't write the code but I did modify and splice 4 pieces of code together. I really like the outcome! The version of Firefox installed on the remote Windows host is prior to 74.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-11 advisory. Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. Firefox 74 now supports the languagechangeevent event and its companion event handler property, onlanguagechange, which is triggered when the user changes their preferred language (bug 1154779). This was previously listed in our compatibility database.

The Firefox cache temporarily stores images, scripts, and other parts of websites you visit in order to speed up your browsing experience. This article describes how to clear the cache.

Firefox 74.0.1 Download

  • To clear your history (cookies, browsing history, cache, etc.) all at once, see Delete browsing, search and download history on Firefox.

Table of Contents

  1. In the Menu bar at the top of the screen, click Firefox and select Preferences.Click the menu button and select ...
  2. Select the Privacy & Security panel.
  3. In the Cookies and Site Data section, click .
  4. Remove the check mark in front of Cookies and Site Data.
    • For more information about managing site data, see Manage local site storage settings.
  5. With Cached Web Content check marked, click the button.
  6. Close the about:preferences page. Any changes you've made will automatically be saved.
Firefox 74 downloadFirefox 74 features

Firefox 74.0 Download

Tip: Here's another way to clear the Firefox cache:
Click the Library button , click History and click Clear Recent History…. Next to Time range to clear, choose Everything from the drop-down menu, select Cache in the items list, make sure other items you want to keep are not selected and then click the button. See this article for details.

You can set Firefox to automatically clear the cache when Firefox closes:

Firefox 74

  1. In the Menu bar at the top of the screen, click Firefox and select Preferences.Click the menu button and select ...

  2. Select the Privacy & Security panel and go to the History section.

  3. In the drop-down menu next to Firefox will, choose Use custom settings for history.
  4. Select the check box for Clear history when Firefox closes.
  5. Beside Clear history when Firefox closes, click the button. The Settings for Clearing History window will open.
  6. In the Settings for Clearing History window, put a check mark next to Cache.
    • For more information on the other optionspreferences, see Delete browsing, search and download history on Firefox.
  7. Click to close the Settings for Clearing History window.
  8. Close the about:preferences page. Any changes you've made will automatically be saved.
Tip: There are several add-ons available that will allow you to clear the cache using an icon on your toolbar. Go to the Mozilla Add-ons Web Page to do a search. The Mozilla community is not responsible for maintaining and supporting third-party add-ons. Please contact the add-on developer directly if you need assistance with an add-on.