Firefox 커뮤니티 포럼

May 2026 Firefox app update has been a disaster for me. Nothing loads, and many log ins, like microsoft or facebook no longer possible. Too many new features take too much data and just never load anymore. Eventhough I set it to delete history on exit, because it saves long lists of history anyway, slowing or stopping all. Password manager suddenly has bern giving the wrong passwords, (suggested ones instead of my registered ones?), so I got logged out of my microsoft and meta accounts on all devices. Does anyone know why? I would appreciate all ideas and remedies. Thank you, cb

Google has added some AI 'ads' to their title page? This just appeared a day or so ago on my system. How did I remove it, block it? Attached is an image of what I am asking about. What is interesting is in Chrome I can explicitly turn this junk off. But when using the Google search title page with Firefox, there appears to absolutely no way to disable it... very nasty way of forcing you to use Chrome?

Moderator note: Edited per OP's request.

I am trying to disable the text segmentation behavior in latest Firefox(v151), but I have encountered an issue where changing the preference in [about:config] does not seem to have any effect.

Details:

   Target Preference:  intl.icu4x.segmenter.enabled
   Current Setting:       false

   Problem: 
   Even after setting this to false (and restarting the browser), the text segmentation behavior (such as word selection logic) remains unchanged and appears to still be using the ICU4X engine.

   Reference:
   https://support.mozilla.org/en-US/questions/1440483#answer-1638092

I would like to know:

  1.  Has this preference been deprecated or hardcoded to true in recent versions of Firefox?

   2. Is there any other way to disable the ICU4X-based segmenter or revert to the previous segmentation logic?

   3. If this is a known change, is there an alternative preference to adjust how word selection handles specific languages (e.g., Japanese)?

I am using the latest version of Firefox. Any insights or workarounds would be greatly appreciated. Thank you in advance for your help!

this month I started having issues logging in to my pharmacy and my bank using firefox on my desktop computer. I get stuck in a Scanning By Zero Phishing loop. Ultimately I am forced to use Microsoft Edge to access these 2 accounts. My bank actually apologized for interrupting my login saying something about my login made the bank think I am a bot.

Oddly enough I have 2 laptops, mine and my sister's, that do not have this issue.

Obviously I have identified my desktop computer as the problem but I have no clue how to fix it.

Steps I have taken so far: clearing browser cache and logging into windows safe mode and clearing the temp and prefetch folders. I have had intermittent login issues in the past and these steps USED TO WORK but not anymore.

Just in the last week, possibly since a software update, when I click on a link I am diverted to a new website that I did not want to see. The link I clicked also opens, but I have to close the unwanted tab and navigate back to the one I wanted. How can I stop this from happening?

all the routes off the icon lead to "installation and download links" have done both actions with the same result of red dot and NO access to the free vpn...frustration is gaining steam! I have found the button to turn vpn on and off but even closing the browser after closing nor leaving it on has helped activate the service!!!

Please help, old but not too ignorant!!

Tabs will crash over and over again. I can barely look at any given page for longer than a minute or two. What happened?? Firefox was never like this before. It just crashed in the middle of me typing this LMAO. Using Brave in the meantime. This is ridiculous.

I got an email that my subscription for Mozilla VPN has been cancelled a month from now. I wonder why? On the "What’s New | Firefox 151" page the new free VPN service is announced. Does it have anything to do with that? Not yet in my region (Sweden) though. Kind regards, Monika Ivarsson

The Issue: I want to copy all bookmarks/Logins/PW from original into two additional already created but not used Profiles. Hence, I have created 3 desired profiles.

I want to copy into each profile the "Original" Bookmarks/Logins/PW nothing else matters to me, i can go to each profile and modify its settings after that and I have read the device Sync considerations.

At this stage, do I abandon the already created 2 additional Profiles and follow the Copy to New Profile procedures outlined in FAQs?

The benefit to my current state is I could copy in "Original" Bookmarks/Logins/PWs to the newly create profiles that are vacant I could then go into each profile to delete the non-relevant data.'

I have read the FAQ differences for Containers vs Profiles and still feel Profiles is best for me. I have also read Sync and the associated threads in FAQ. I have also read Copy from "Original" profile but it seems to apply when creating a Profile.

In the Original profil, I have three Bookmark sub-folders and over 200 bookmarks, plus over 480 Login/PWs. I wanted something like Profiles feature, to put my personal (PW, Bookmarks & Logins) into its own areas' Profile. The use case is Original I use for learning, Personal for banking and medical, the 3rd I have setup one Not For Profit Organization Profile. Each has relevant bookmarks/Logins.PW.

So I created my Profiles. Then realized the PW/Bookmarks/Logins are truly separated.

YouTube Seiten crashing after a few seconds with Firefox Nightly from 23.05.2026. The build from 22.05.2026 did not have this problem. Right now i did a rollback to the last build to fix this.

I cannot see my left side vertical list of my bookmarks (including 'other bookmarks'. Can you tell me how to access this list every time I open Firefox on my desktop and other sites?