Diễn đàn hỗ trợ Firefox

I wanted to try the new split screen feature. The guide says you need the latest version 149. When I check 'About Firefox' it says I have version 140.9 but it also says 'Firefox up-to-date'. Could you advise how I can update to latest version 149 please?

What are the step-to-step instructions in order to use Free VPN? (see attached image) I did a query on the web and it came back stating that Firefox VPN was not free. I am confused. Thank you for your prompt assistance.

This is the message I get when trying to login to my Costco account: Application error: a client-side exception has occurred (see the browser console for more information).

I'm having problems with AOL ad blockers. The program says that I have ad blocker plus turned on in my Firefox extensions. I turned everything off in the exension menu and still have the same issue.

Running on a Macbook with Tahoe OS. Certain websites will not display my responses to a checkmark box. Certain websites will not permit changing a checkbox default setting. Specific example: https://cards.barclaycardus.com/ has a checkbox with remember user name defaulted to a check. Attempts to click to remove the check do not work. Also, on certain websites when entering login information that is incorrect, the message indicating to correct the item(s) in red or highlighted does not display the incorrect items in a highlighted condition. In fact at the bottom of this page, the response box labeled Email me when someone answers the thread does not display a response when I click on it, even though the "response" is accepted.

In previous versions of Firefox, using an alternative search engine was seamless: I just typed my keywords and clicked the specific search engine icon.

With the current update, the workflow is much longer. Now I have to:

1. Type the keywords 2. Click the dropdown arrow 3. Select the alternative search engine icon 4. Hit Enter

Why was this UX change made? It feels like a step backward.

Hi folks, I restarted Firefox today on my Macbook and now the Restore Previous Session option is no longer working. I've tried the Sessionstore fix described here https://support.mozilla.org/en-US/kb/how-restore-browsing-session-backup but it is not doing the trick. I've used it multiple times in the past and it has always worked up until now.

I've since opened a couple of new tabs and then shut Firefox down to see if the Restore Previous Session will bring those particular tabs back. However the Restore previous session remains greyed out. I suspect it may be to do with the latest update to 149.0.2. I downloaded and installed that two days ago, but only restarted this morning so I think the update would have been done then. Are there known issues with this update, and is a fix coming? Thank you, Shane

When opening the "Show all history" window (command Y) the text is garbled. I have checked the font book and there are no duplicated and I have validated all fonts. I have tried using the troubleshoot mode and occasionally the text is rendered correctly but mostly it has no effect. There is no other location in the browser where the text is garbled. I have tried changing the text in the advanced settings and both performance settings are disabled.

When using the built-in Firefox AI sidebar and clicking the "Summarize page" button, I consistently get the error: "431 Request Header Fields Too Large" from chatgpt.com.

Cookies were cleared multiple times Extensions (including AdGuard) were disabled The issue persists

Previously, changing a privacy setting temporarily helped: switching from "block all cross-site cookies" to "block cross-site tracking cookies and isolate other cross-site cookies". After that, the feature started working.

However, after restarting the browser today, the issue returned, and changing this setting no longer helps.

I would also like to note that currently there is no way to disable or hide the "Summarize page" button, even though I did not need it initially. I tried to configure things so it would work properly, but was unable to do so.

Steps to reproduce:

Open any webpage Open the Firefox AI sidebar Click "Summarize page" Observe error 431

Expected behavior: Page summary should be generated successfully.

Actual behavior: The request fails with HTTP 431 error.

Hi there.

Since quite a while Firefox is trying to enhance our browsing security by "upgrading" connections from "http" to "https." This may generally be a good idea, but it is literally driving me crazy at the moment because it also does so for "internal" sites I host within my LAN (such as my "Home Assistant" instance or a Zigbee coordinator, accessible via its own hostname and web UI). However, these connections will fail, because I don't have certificates for my internal hosts, and thus there is no "https" listener. :-(

(I use my own subdomain "<host>.city.internal.example.org" internally, so Firefox may be confused?)

I feel this behavior has become "more aggressive" within the last few days, so maybe it is due to a Firefox update?

Is there a bullet-proof way to prevent Firefox from doing so?

I've already set the below options to false: - dom.security.https_first - dom.security.https_first_for_custom_ports - dom.security.https_first_for_local_addresses - dom.security.https_first_for_unknown_suffixes - dom.security.https_first_pbm - dom.security.https_first_schemeless - dom.security.https_only_mode - dom.security.https_only_mode.upgrade_local - dom.security.https_only_mode_pbm

Help, please!

I'm close to abandoning Firefox in favor of a different browser, because at the moment it's close to being unusable for me anymore... :-(

Kind regards,

Ralf

When opening websites the images are not opening, only blank boxes appear. I don't have any settings for security causing problems because I turned them off previously. simply cannot find what is driving this. Thanks, Don

i used to be able to access Gemini by clicking an icon in the leftmost column of any Firfox screen. I nw get an error 502 message. How can restore access to Gemini