Firefox Community Forum

I've suddenly had an issue crop up when trying to access Twitter on Firefox. I get an error message that says "Firefox’s Enhanced Tracking Protection (Strict Mode) is known to cause issues on x.com", but the problem is Im not using Strict Mode. I have standard protection on.

Getting around 20ms for DNS lookups so thats not the issue. Why do I see Error Code: NS_ERROR_OFFLINE maybe once every several days when this Firefox has never been in offline mode and never will be? Env is MacOS 26.5.2 with current Firefox installed.

Hi, My browser won't save the open tabs. I lost my tabs multiple times now, I don't even bother opening them back up now, but it's annoying. I have activated ( and disabled/enabled ) the setting to open previously open tabs on startup.

What can I do ? thanks

I am suddenly getting ads across websites in Spanish, and my Amazon account flipped to Spanish. I used several IP geolocation services which identified my IP address is assigned to Mozilla Corporation in Queretaro, Mexico, despite my Mozilla VPN being designated United States. How do I solve this problem?

Hello there,

I’m experiencing high memory and CPU usage in Firefox, which is affecting my computer’s performance. One issue appears to be that “FirefoxCP Isolated Web Content” continues running even when tabs are inactive, contributing to increased resource usage.

Other browsers, such as Microsoft Edge, reduce memory and energy consumption by putting inactive tabs into sleep mode after a period of inactivity. I would prefer to continue using Firefox as my default browser, but I need a way to manage this level of resource usage.

Could you please advise whether Firefox offers a comparable setting, workaround, or planned improvement to reduce CPU and memory usage from inactive tabs?

Thanks for your help!

When a link from outside Firefox opens the desktop browser, it displays the default home page but does not continue on to the URL specified in the link. This is new for me in V 152.0.6 (aarch64) . Mac OS 26.5.2 (25F84)

unable to load X.com. Shows Firefox Enhanced Tracking as "strict". in FireFox settings, it show i'm at "standard, not Strict". Have refreshed tabs as instructed. No change. Still cant load X.com.

When checking out the new features the ' Learn More' link under Tab Groups directs to the article explaining Pinned Tabs, there is no way to get to the explanation about Tab Groups

http://www.portal.lincare.com. When I typed that www. and it shows firefox cannot open it for me to order the supplies for my CPAP.

I am having trouble getting yahoo.com to appear on Firefox. It worked perfectly for many years but on my current Firefox browser, www.yahoo.com does not work. The page will appear for seconds and disappear. How can this be fixed? Do I need to download a newer version of Firefox?

I'm trying to find a solution for having all tabs open across devices. Currently, my desktop has about 50 open tabs that I access regularly. Today, I installed Firefox on my laptop, signed in and initiated syncing. All bookmarks came over, everything looks great, except that none of my open tabs from the desktop browser show on my laptop.

I would like to have identical tabs open across devices. Is there a way to configure this where a new computer being logged in automatically receives all open tabs from the initial device and then tabs automatically sync based on whatever is opened/closed on either device after the initial tabs are identically synced?

Firefox drop down history shows about 85% favicon substitution for gmail entries. It is not the gmail favicon, it is a food blog I do not login to and only very occasionally read. It is a very random substitution.

Clearing cache, cookies and restarting did not eliminate the issue. All apps and browsers are fully up to date.

I only use Firefox so do not know if it happens on others. Also, it does not happen all the time, only about 85% of the time, sometimes within one session, as visible in the attached screenshot. The bottom 9 are gmail's and you can see it has chosen to substitute the gmail favicon for an unrelated food blog favicon, but the there are several gmail entries that display the correct google favicon.

It isn't a problem but it does make me feel less secure as it is a weird glitch. If there is crossover there, where else may there be identification failures? Is there any way to correct this? Thank you.