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Questions tagged [firefox]

An open-source web browser developed by Mozilla. If relevant to the question, also include the tag of your operating system.

0 votes
0 answers
6 views

Is there a way to force enable Reader View in Firefox Android on pages where the icon doesn't appear? [migrated]

From this question about Firefox in general I have tried everything except the custom css answer. How can I force enable Reader Mode in the Android app? Even the about:config page won't open. Maybe it'...
Captain Man's user avatar
1 vote
0 answers
31 views

userChrome.css changes to Firefox only take effect on Ubuntu, not Mac

I have a userChrome.css file that I use to remove unused menu items from Firefox context menus on my Ubuntu machine. Here is the contents: :root[inFullscreen] #PersonalToolbar { visibility: ...
LinusHasaWalkingDesk's user avatar
0 votes
2 answers
34 views

How do I get email notifications for Firefox updates?

As Mozilla shut down their mailing lists some years ago, is there a way to still get notifications about Firefox updates via email? Maybe by a third party? Screen-scrape their download servers?
weberjn's user avatar
  • 579
3 votes
2 answers
636 views

How to see image size in Firefox?

I would like to have a way to see image size not in pixels but in bytes. I tried Tools > Page Info > Media but I have a table with "Size" option not enabled by default and after I have ...
Eimrine's user avatar
  • 41
1 vote
0 answers
30 views

convert the .json file back to .jsonlz4 file as it was in Firefox

Hello every professional engineer I knew how to convert the Firefox file sessionstore.jsonlz4 to .json file by using this website https://www.jeffersonscher.com/ffu/scrounger.html and after editing ...
Moamar's user avatar
  • 11
1 vote
1 answer
40 views

How to disable google automatically being selected in address bar when pressing G on a new tab?

When I open a new tab and press g, it suggests and selects my google.com bookmark: However, whenever I open a new tab and press y. It suggests searching for the letter y on google and I have to press ...
John's user avatar
  • 201
1 vote
1 answer
40 views

How to get rid of the back and forward button in firefox 126.0?

I tried to create a file in my profile folder: chrome/userChrome.css @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); #back-button, #forward-button { ...
rubo77's user avatar
  • 5,032
2 votes
0 answers
24 views

Firefox bookmarks folders don't open on hover

I posted this question long ago on Mozilla's own forum, but didn't receive a definitive answer, so let's try on a higher-traffic forum. I've got plenty of bookmarks organized in folders and sub-...
P. N.'s user avatar
  • 33
1 vote
0 answers
35 views

Set custom accept headers in Firefox

I don't like *.webp images, mostly because Firefox keeps downloading them rather than just displaying them, but also when I do want to download the image, I intend to feed it to other software, which ...
404 Name Not Found's user avatar
7 votes
1 answer
2k views

What determines the number of Firefox processes?

I see there are 20 tabs on my Firefox browser, but 31 Firefox processes in the Firefox process group in the Task Manager. I think one Firefox process corresponds to one tab, so why are there so many ...
William's user avatar
  • 275
-3 votes
1 answer
91 views

F12 no longer run dev tools in Firefox

In Firefox (version 126.0), F12 no longer launch dev tools. In the hamburger menu, More Tools, i only have "Task Manager" and "Page source". I've tried repairing the install, full ...
madgangmixers's user avatar
1 vote
0 answers
91 views

Firefox Ubuntu 22.04 font hinting problem

I don't like font antialiasing and always turn it off. Previously I used Ubuntu 14.04, now I'm switching to 22.04. For most applications I have disabled antialiasing using gnome-tweaks, in both ...
igor's user avatar
  • 11
1 vote
0 answers
18 views

How to get a indicator on firefox when moving tabs

I am looking for a way to get an indicator to show up when moving tabs in Firefox (and variants). This is broken with Firefox multitab using chrome CSS. This feature seems to be present in one of its ...
Rashiq's user avatar
  • 171
0 votes
1 answer
171 views

How to stop websites in Firefox from nagging about adding them as an application for mailto links?

I'm using Outlook online for some corporate inboxes that I have. I access it using Firefox on Windows (currently version 126.0). All too often, the web application at https://outlook.office.com/ nags ...
urig's user avatar
  • 524
0 votes
0 answers
30 views

why i can't adjust my window size or move firefox in kali

I just opened up my pc, only to find i cannot adjust firefox window, my terminal is displayed at the bottom and it cannot move either. I typed in the following command based on the following solution ...
alson's user avatar
  • 11

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