Diễn đàn hỗ trợ Firefox

When I first go to the URL bar to either search or enter a URL I see a drop down of sites. These are not the search engines. See the image attached. How do I remove these?

Recently if I browse pages with maths forumulas they do not display coorectly, instead the underlying Tex or LateX code is shown.

I have several computers and I use Firefox on all of them, but curiously this problem does not happen on all of them, some show formulae correctly.

The image attached shows an example at Wikipedia - Lagrange point . The upper portion is Chrome and displays correctly, the lower portion is Firefox where the formyuals do not display correctly.

This is only started recently. Previously I had no issues with formulas displaying on any pf my computers, for many years.

according to the add-on page in Settings, the AdBlock Plus add-on is enabled in my browser, but it doesn't appear to be working. so I am trying to access the menu options to control it. to do that, I need to add the icon to my toolbar.

this article: https://support.mozilla.org/bm/questions/955157

explains two methods:

1. go to Settings --> Customize Toolbars, and drag the icon to the toolbar. this doesn't work, because the icon is not there to be dragged (even after I restore defaults).

2. go to the View Menu --> Toolbars --> Add-on Bar and move the icon from one toolbar to another.

quite apart from the fact that it took me two days to figure out how to get the View Menu to appear, that procedure doesn't work either because after View Menu --> Toolbars --> the Add-on Bar is not listed.

can someone please tell me what I'm doing wrong.

thank you,

Saw older replies here, but I don't have the technical expertise to understand them.

The 3D function in Google maps doesn't exist. The item to click on is no longer there. Is there a work-around or do I have to use Chrome now.

(It seems with each update I automatically get, I lose a function. I'd like to get a link to a Firefox version from at least 6 months ago.)

Since yesterday I am getting this "Did Not Connect: Potential Security Issue" error on every sites that I have tried to visit. Even on well known secured sites like https://drive.google.com is inaccessible while my Chrome and Edge is working fine. Any solution?

I reinstalled Firefox and now need to import passwords from file where they were exported before reinstall. This article https://support.mozilla.org/en-US/kb/import-login-data-file explains how to import passwords from file, but this option is missing. The only option available is Import from another browser.

From here https://bugzilla.mozilla.org/show_bug.cgi?id=1702336 it looks like the feature was disabled 9 months ago. It is not clear what is the workaround in interim and what is the current state of resolution. For example, how do I use passwords CSV file to load into Microsoft Edge or Chrome and then import this data from that browser back to FireFox?

I normally use Firefox desktop on my Linux computer.

Last week, I started using it on a public computer running Windows. I installed Firefox Portable and then logged/synced into my Firefox account on this Win computer. I noticed that in the Firefox Portable Windows “about:preferences” page, it says “Your browser is being managed by your organization”, which links to about:policies. In that “about:policies” page, it shows this https://i.imgur.com/JmD8nXg.png Policy Name: DisableAppUpdate Policy Value: true. Now I’m back on my Linux desktop computer and it also has this “managed by your organization” message in “about:preferences” and the same “about:policies” stuff. In other words, it appears that this policy was copied from the Windows public computer to my personal Linux computer. I don’t want that.

How can I undo this? And how can I block this sort of policy syncing?

I need to constantly jump between google search and wikipedia and i hate using the mouse. Normaly when you click the url bar you can type "@wikipedia" or "@google" to change the search engine to wiki, while typing anything else will prompt a google search. BUT when you use the shortcut "ctrl + e" or "ctrl + k" a box appears in front of the url bar with "Google", just like it would whe you typed "@google". This actually blocks "@wikipedia" from being registered making the whole feature almost useless and forcing me to invent workarounds to things that should be VERY simple in a browser. Any ideas how to fix this?

Got a new Acer laptop with windows 10. Firefox is set as my default browser but msn page opens first then i have to click on next tab to open Firefox. How can i get rid of msn?

Why do my Bookmark Icons on my Bookmarks Tool Bar intermittently show up as the Target Symbol, I see three websites with this symbol at the moment. If I click on the bookmark sometimes it reverts to the correct icon. Any solutions to stop this? Thanks

After updating Firefox to v95.0 (64 bit) websites start to shown in dark mode.

My windows theme is dark, but i don't want to use same for Firefox. I tried to set ui.systemUsesDarkTheme value as 0 in about:config. But problem still remains.

Is this a bug with new version, or a feature :)

As of version 91 I think it was, around middle of 2021 (last year), in the dropdowns from the across-to-the-top bookmarks menu, the items are spaced out vertically way too much. So much space is wasted. I like the spacing they had before that version. I just want to go on record as giving feedback that I don't like it, and wish it went back to the original spacing. I have looked at https://support.mozilla.org/en-US/questions/1346987 and know there's all sorts of weird stuff I can do to customize my Firefox to get the spacing I want, however, my point with this post is to get feedback back to the Firefox developers to see if they will consider changing it back. If posting here is not the best way to get feedback back to the developers/designers/product-owners, please let me know the best way. I couldn't find another way.

Hi everyone,

I have the problem in the Subject line. FF sucks about 500 MB to be run, on top of which it takes 500 MB per tab, and that makes it impossible to run a research on my 8 GB Mac. Yesterday I was looking for a lamp and had no more than 7 tabs open, 3 of which were largely text, 2 were online shops, and 1-2 were websites with pictures. No Facebook or social media, no YouTube. FF froze, made the whole Mac freeze (well, Mac is garbage nowadays but let's leave that out of this topic), and I had to wait MINUTES before I could close it, because the computer was nonreactive.

When I check online, I see people being like "why can't it manage more than 50 tabs?". 50?!?! My computer dies with a maximum of 10 when it's only text websites!

So, I guess there's something wrong with this.

- I don't have many extensions (SimilarWeb, VPN, and Flash Player), I always use incognito so I can't use the plugin that allows me to use several accounts at the same time, so I can't see what's messing with my Mac. - The Activity Monitor (pretty much Task Manager on Windows) shows "FirefoxCP Isolated Web Content" for each tab, could that have anything to do with my problem? - CPU usage is very low, some 0.5 to 10% max during heavy use. - I seem to remember I used to have dozens of tabs open in the past, although I can't be sure. Is this a recent problem?

I really hope there's a way to solve this, because now I always fear that opening FF while on a Zoom meeting might freeze the whole thing.

Thanks to anyone who might want to shed some light on this big problem.

Screenshots: RAM and CPU usage with 2 tabs open. Two, taking more than 1 GB of RAM and about 250 threads in total? While using 0.2% of the CPU? I'm lost

google.com and google related websites doesn't load at all. For example, gmail slowly loads, but loading icon never disappears, loading icon is always shown and then often it shows 'reconnecting' message. This works OK in Chrome.

Steps to reproduce: 1. Open Firefox without VPN - all loads well. 2. Enable VPN - stops loading. If I then disable VPN - it starts loading again.

If I restart Firefox it starts working OK, but after a while stops working again.

I use Firefox quite a bit and installed it on my wife’s MacBook air and I’m trying to get her to use it. I recently set up a gmail account for my brother-in-law who does not have Internet and uses my wife’s MacBook air when he visits us. 

A couple of days ago the mystery icon—Firefox logo with a tv screen on the upper right—started appearing on my MacBook pro every time she turned on her computer. There does not seem to be a way to get rid of it. Any suggestions?

For an unknown reason, Firefox Browser doesn't render portions of text on some pages, leaving invisible areas. I'm using the latest version (95.0.2) on Windows 10, but this was a problem in other recent versions. It only happens on some systems. No other browser I've tried has the same problem, so the issue is definitely Firefox-specific.

One example of a problematic page is arxiv.org, another one is Caltech News; see the attached screenshots for how Firefox renders these pages on my system.

Here's what I found out.

1. The issue goes away if I disable the "Allow pages to choose their own fonts, instead of your selections above" font setting.
2. The issue remains even if I disable/uninstall all add-ons.
3. Refresh-install doesn't resolve the issue.
4. After uninstalling and installing Firefox cleanly again, with old settings auto-imported (bookmarks, history, logins ...) and no add-ons present, the issue is not present at first. However, if I enable "Open previous windows and tabs" option to restore my session on startup, the issue reappears after I close and re-open Firefox a couple of times, and doesn't go away after that. It doesn't matter whether the problematic pages are included in the restored session or not; they will simply not show all text as expected if I visit them.
5. Deleting the entire cache, cookies, site data and site settings doesn't help.
6. Opening Firefox in Troubleshoot mode make the problem disappear, but it returns immediately when I leave the Troubleshoot mode.

Any ideas how to fix this?

Periodically, randomly is all I can say, a message window opens when I power on with a statement about "UpdateBrowserForApp" having stopped working; and then I'm given options to close the program, etc. See attached screenshot.

Firefox is the only browser I use. Is this message from Firefox or does it mean I should do something related to Firefox?

Thanks for whatever info or help you can give. Lee