Diễn đàn hỗ trợ Firefox

When attempting to install an extension and clicking on "Add to Firefox" the button is replaced with a "Cylon" throbber and the popup dialog asking to confirm the install never highlights the "Add" button. The browser will stay in this state indefinitely until the tab for the extension install is closed.

Could this be a permissions problem involving the ".mozilla" directory tree in the home directory? I've been having this problem regardless of the FF version for some time (going back to at least v110.x). The recent issue involves that 115.9 ESR version installed in Debian Bookworm.

TIA...

I view a lot of pdf documents via firefox, the light gray background makes my eyes and head hurt after prolonged usage. In the past I found a solution on this forum that advised to set pdfjs.viewerCssTheme to "2" in about:config. This set the background of pdf viewer to black/dark gray. This has worked for years until recently when the pdf viewer switched to light mode again (pic 1). I checked the about:config settings for pdfjs.viewerCssTheme but there appears to be no change. I tried restarting the browser, setting the theme to 0 and to 2 again, updating browser. Sadly the theme is still light gray. Is there a way to change it again? The desired outcome is in pic 2. I do NOT want to change the color of the pdf pages themselves.

Just updated a friend's computer from Windows 7 to 10. Installed firefox over previous ESR and now there's no way to remove the search bar from the new tab page. On my W10 system, the search bar isn't there, not sure how or why, but on her's there's no option NOT to show it as there used to be.

I found some VERY old (2014) info on this but doesn't seem to be up to date.

PLEASE give us our options back and stop taking them away, sheesh, getting as bad as Microsoft.

Is there a workaround for this to remove the redundant search bar from the new tab page since you can search from the address bar?

Thanks!

I accidentally pressed a lot of keys on my keyboard and for some reason the default colors of Firefox have changed. I found out that by using Ctrl+Alt+D that I can switch the colors back to normal or to the colors that now appear automatically, but this only works for one tab. If I open a new tab, it shows the weird colors (see images below). I tried looking up specific shortcuts for Firefox considering the shortcut mentioned before (Ctrl+Alt+D) only works on Firefox. But I can't find any shortcut tied to that combination. I'm unsure what to do and how to fix this.

I would appreciate it if someone could tell me how to fix this.

After the latest update (124.0.2), two of my add-ons (Tapermonkey and Youtube Redux) are not working, even though Firefox says they're enabled, and it is giving no indication that the add-ons aren't working, no pop-ups to enable some permission for these extensions. Both of them reformat the layout of websites to make them more usable, and using sites without them is basically impossible for me. I have tried:

• Restarting Firefox
• Disabling the add-ons, refreshing, enabling the add-ons, and refreshing again
• Checking for add-on updates (everything is updated)
• Deleting and reinstalling the add-ons
• Restarting my computer
• Checking the permissions in the extension menu
• Turning off all other extensions except for one of the ones with issues
• Reading through the FAQs and help pages and following the instructions on some of them

Nothing has worked. Every time I reload one of the sites affected by this to check if it's finally worked, the site takes a very long time to load. Since these add-ons are for different websites and both aren't working, I know that the problem is not with the sites themselves. Thank you.

When i click on a tab, if I am not perfectly steady at the time of the click, Firefox opens the tab in a new windows. It happens several times a day, it's quite annoying. Searching for solutions in the support page, I've found that there was an add-on to disable this function, but now it's not available anymore. Is there a solution in 2024?

I went to open a new tab today and suddenly the font or scaling on my menu bar got way bigger. It's extremely annoying, and I can't find any way to re-scale it, as all the zoom or font settings seem to affect only web pages, or the scaling of the entire browser window, including content. All the content in a browser window is fine, its ONLY the menu bar. I wonder if I hit a hotkey by accident when trying to open my tab (I used CTRL+T, but it's possible I accidentally hit another key instead or in addition to) but it's driving me up the wall.

I've always liked the Firefox New Tab page, with Pocket, and until today, DarkReader plugin has always worked. But now it says that it can't because the page is protected.

I tried the solution to use bookmarklets, suggested in https://support.mozilla.org/en-US/questions/1350781, but it didn't have any effect (https://sanketmehta7.github.io/DarkMode-JS-BookMark/

If I can't find a solution, I'll just ditch Pocket, and use Google as my first page, or something. Or maybe ditch Firefox, which doesn't seem to think that dark mode is important. I don't like being blinded by the light.

Is there any way to make Firefox show the "back", "forward", "reload", "bookmark" buttons that are shown in the default context menu when right clicking a web page also in the context menu that is shown when right clicking an image?

I think those buttons should always be included in all context menus opened for a web page, no matter if you happen to click on the background, on selected text, on an image or a link because.

It is so frustrating having to open the context menu multiple times to find a location where the default context menu is opened instead of the specific ones for selected texts, images, links etc.

Thanks!

Hi. I was just looking at Google Photos on both Firefox and Chrome. Chrome had a bigger picture because the window had only the tabs bar and the address bar, and Firefox has an additional title bar. I was wondering if it would be possible to remove the title bar so the picture on both browsers were the same size?

I installed one of the ad blockers, I can't remember which one. It's given me so much trouble that I thought to disable or delete it. I deleted the little icon ( a stop sign) that shows up on the far right of one of the menu bars (don't know the name of that bar but here it's the second one down). But websites still complain that I have an ad blocker. I've gone to 'add-ons and themes' but I can't find it. BTW, what's the difference between an add-on, a plug-in and an extension? Which one of those are ad blockers? How can I see and then delete whichever blocker I still have? Without the icon I can't even disable it for individual sites.

I am attempting to copy values from one google sheet to another and am unable to do so effectively as whenever I press crtl +shift + c I open the the developer tools. All my efforts on looking for a solution have lead me to unsupported extensions so I'm stuck wondering what to do.

Hi there - Every website seems to come up in English, ie Firefox seems to be translating other languages automatically. (My version is Firefox for Mac 123.01 64-bit.) I am wondering how I can prevent automatic translation of websites. I have had a look in preferences etc, but I do not see anything there to prevent automatic translation. Any help gratefully received! Many thanks :-)

I want to use a key to open Speed dials in the same tab and same key with 'Shift' to open that speed dial in a new tab.

My favourite were Ctrl+1, 2, 3, 4 ... and so on. And when I used Ctrl+Shift+1, 2, 3 etc, then they opened in a new tab. But now the Ctrl+1, 2, etc are focusing already open tabs. How to revert to old behavior of these shortcut keys?

I've read several articles on using extensions like 'Shortkeys (Custom Keyboard Shortcuts)', but those don't let me use C+1, 2, etc. Also another method of using to js files (auto.js something) doesn't seem to do this job, as I think that would only disable some KeySrtcs altogether.

see my screenshot: 1. this smal ? arrow - show tab titles- how can i disable in about:config 2.other symbol -extensies are empty...how can i add here my addons? 1- i dont have it in my desktop and 2-in this desktop i see all my addons, in this symbol.these screenshot are from my new laptop...

Hello,

We are adding accessibility features to the Emmabuntüs Debian Edition 5 Linux distribution based on Debian 12, and we would like to use the reading mode included in Firefox to enable smoother voice reading for visually impaired people.

Currently we are going to use the Svox Pico and eSpeak speech synthesis at the same time because in SVox Pico we do not have all the voices we need for our possible users, particularly Portuguese.

We have found how to make the synthesis used by Firefox's reading mode be SVox Pico by default instead of eSpeak, however this requires a modification in the /etc/speech-dispatcher/speechd.conf file.

To do this, simply put the default pico synthesis in this file:

DefaultModule pico

But this causes problems with other software that we intend to use.

We found how to make all the voices of a speech synthesis appear in the Firefox playback menu by going to about:config and doing a search for the word "narrate":

Option narrate

On the other hand, we cannot find how to modify the "narrate.voice" option to tell it to default to pico speech synthesis instead of eSpeak synthesis which is the first synthesis loaded by speech-dispatcher, because we must keep eSpeak as the first synthesis loaded and do not put a default synthesis in speechd.conf to maintain compatibility with software that we wish to use.

Do you have any tips or a manual that explains the possible options for the "narrate.voice" option?

Thanks in advance for your help.

When I try to detach a tab, so that it's a new window, by dragging the tab downward so it isn't on the tab bar. After I let go a new window is created for that tab that I dragged, however it also maximizes the window, which disorients my work flow. Is there any way I can detach a tab into a new window and not have it maximized automatically?

On my Windows-11 Laptop, the Vertical-Scroll-Bars in Firefox are too narrow for me to use comfortably. I am struggling with the Touch-Pad, Mouse Pointers, causing the frequently needed act of Scrolling to become a dreaded ordeal? If someone would provide clear and concise instruction on how to make the Vertical-Scroll-Bars the Classic Width of old, it would be greatly appreciated. Thank you! lg

EMBARRASSINGLY I REALIZED WHAT I NEEDED TO DO. THIS IS THEREFORE NO LONGER NEEDED TO BE ANSWERED, SO YOU CAN SIMPLY MARK IT SOLVED IF YOUD LIKE. THANKS!

I chose to reinstall Firefox browser in order to start over fresh and ensure a security refresh. Once installed, I created an entirely new Mozilla account with new info. However, when I go up to the top right of the browser and click on the little icon of the circle with a bust in it (the Account icon), it simply opens the preferences and related settings, it does not allow me to sign in to any account, nor does it show if I am already signed into any account. Is this a malfunction of the iteration I installed, or am I misunderstanding something?

Thanks in advance for your help!

PS attached is what page I am shown when clicking the aforementioned icon

Dear Firefox team. I have to work with many pdf file. When it preview on Firefox it's toolbar too much small and print, download buttons also small. I want to increase toolbar size. I try with about:config but I failed. Please give solution. Thanks in advance