Diễn đàn hỗ trợ Firefox

As the subject says Firefox very suddenly started giving me terrible loading times, despite all the sites working perfectly fine on other devices and browsers. Issue continued with troubleshooting mode, not sure where to go from here. I will open youtube, it won't load about 5 thumbnails, I click on a video and it sets it to 140p and then it still lags the entire video as if I was using 1kbps internet. I tested my wifi connection and its having no problems. Something similar happened when I used to use Opera GX, it was fine for a long time and then one day terrible performance. Please let me know where to go from here. Windows 11 Pro.

After the most recent update of FF on Mac OS Sequoia, suddenly I am no longer able to login to either of my routers, because they require http and FF keeps forcing https.

This results in no login gui but instead an ‘unable to connect’ error message.

I have researched and tried every conceivable fix and nothing works (settings, about:config, cookies, cache, all of it.

I would have expected that simply adding exceptions in settings would work, but it simply doesn’t.

I can login via Safari, so this is clearly a FF issue. It even happens in Safe Mode.

Kind of at my wits end. Anyone have a fix.

After an update, Firefox messed up my toolbar configuration. After resetting everything back to normal, just one thing doesn't want to stay where it's placed: the "new tab" button a.k.a. the "plus sign". I want the button to be to the right of my open tabs (screenshot no. 2) but after closing and opening Firefox again, the button simply jumps back to the left (screenshot no. 1). So I go to (Right Click) > "Customize Toolbar..." > (Drag the button to the right) and it works, only until I restart Firefox again. Is there anything I can do to make my changes stable?

(One more thing: there is this "List All Tabs" button, which can't be removed, how could I remove it?)

Firefox Version: Developer Edition; 132.0b3 (64-bit); aurora update channel

I have been using two Firefox browser windows a lot recently. Suddenly the response time to a request to open new window went from immediate to 20 seconds. Initially that meant I hit the "new window" button 10 times to get any response which meant browsing was interrupted for the next 5 minutes by the appearance of yet more new windows at 20 second intervals! Has anyone any idea about what has happened?

Hi,

Firefox Developer Edition 126.0b7 (64-bit) shows a perpetual "Loading" screen when trying to access my internal Logitec Media Server at 127.0.0.1:9001.

Other browsers like Waterfox Classic have no trouble, so LMS is working fine.

I tried cleaning the cookies, disabling the firewall (Windows 10), that did not help/

Any idea how to solve this?

Thanks.

I have loved FF desktop browser since I started using it per my boss in 2003. But I am so tired of the fact that EVERY SINGLE TIME you put out an update it breaks my access to the bank. EVERY SINGLE TIME. I waste HOURS reading articles, calling the bank IT dept, chatting with people who are on 3 calls at once, only to hear them tell me to "just use chrome." I clear the cookies, clear the cache, reboot, follow all the prompts in the settings and THEN the damned bank server doesn't recognize the device so it forces yet ANOTHER password change. It happened again TODAY and it makes me so sad but I cannot do it anymore. I am STILL now (going on 4 hours) trying to access the billpay page @ Xantanderbank. (ahem, secure codename) I am forced now, by this craziness, to use the imbecilic duckduckgo which is A) and offensive name and b) you KNOW it nowhere near the product you have built but I CANNOT DO THIS ANYMORE. Thank you for the time it takes to read this diatribe. I appreciate it.

Latest update, 4. oct. Using Firefox Developer Edition. Closed the browser window for the day, and then on opening again it had updated, my entire toolbar, and also icons where the tabs are, are just gone - including the "+" icon for creating a new tab, along with the bookmarks bar having vanished. Picture added below.

It seems like the bookmarks bar is still there, you just can visibly see any bookmarks. Tried adding a new bookmark, but nothing appeared.

How can I fix this?

I recently reloaded my M1 MacBook Air with macOS Sequoia. Ever since doing so, Firefox opens the right-click menu every time I press Control+Return (like when attempting to autocomplete a URL ending in .com, a feature I use quite frequently). It is only in Firefox that this happens, no other browser or program is doing this. I have uninstalled Firefox using AppCleaner, downloaded a new copy of Firefox 131.0 and reinstalled without any change in this behavior. Any ideas on what I can do to stop this so Control+Return only autocompletes a URL again?

Hi,

I have a Mac with Sonoma. Somehow a while ago I ended up with Firefox ESR, which I was told that will not be supported after September.

I am a non-technical user. While I do have Safari and Chrome, I would prefer to continue using Firefox.

Could you please let me know the steps to execute to somehow switch from the ESR version to the current normal version without loosing settings, bookmarks or ending up with problems? Thanks in advance.

This is my second email to you....

I just switched to Firefox from Chrome, because Chrome was crashing all the time.

All I want to do is sync my computer, laptop, phone and Ipad's reading list. I want to be able to see an article on one device, add to the reading list, and have it on all devices.

I'm logged in under the same name on all, and it says sync is on, but the reading lists are different.

Can someone help me? My phone number is [removed phone# from public support forum], email is [removed email from public].

Thank you!

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Hello=)

I am using Firefox v128.2 esr 64bit on big sur 11.7.10..

In firefox there is always this white line on top of the screen when fullscreening a yt video... (but also partial bars in other situations-randomly) (temp workaround : cmd+up arrow . But, whenever you pause or press something it reappears.

Can we please implement a more elegant solution?

Thanks a bunch , dear Mozillians=)

Have an excellent day=)