Please note that if you keep your profile, any version of Firefox that you install after removing Firefox 3. Extensions installed under Firefox 3. Please report any issues to the maintainer of the extension.
When you install Firefox 3. This list covers some of the known problems with Firefox 3. We need help from developers and the testing community to provide as much feedback as possible to make Firefox even better. Please read these notes and the bug filing instructions before reporting any bugs to Bugzilla.
You can also give us your feedback through this feedback form. Extensions and Themes can be downloaded from Firefox Add-ons. Lots of people. A tarball of the Firefox 3. The latest development code can be obtained through Mercurial. Firefox-specific source is in mozilla-central's "browser", "toolkit", and "chrome" directories.
Please follow the build instructions. However, we recommend Mozilla Thunderbird , our next-generation email client and the perfect complement to Firefox. These are unofficial builds and may be configured differently than the official Mozilla builds. You can browse through the available contributed builds on the FTP site. Except where otherwise noted , content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.
Want to Get Involved? Spread the Word! Fixed several stability issues. System Requirements Before installing, make sure your computer meets the system requirements. One superficial change Mozilla hopes will make Firefox look less "dated" is work to make the browser fit in better with Windows Vista and Windows 7. Firefox 4. There each browser tab will get its own process.
Another big change will be with add-ons. One of Firefox's biggest assets is the rich array of these customization options--but a corresponding frustration is how those add-ons often break with each update to the browser. Firefox 4 will introduce a new add-on framework under development today called Jetpack that, like Chrome's, uses Web-based technologies for add-on construction.
Today's Firefox uses a foundation called XUL. Among the other perks besides compatibility, as Mozilla sees it, Jetpack extensions are easier to write and share, and they can be updated as the browser runs without a restart.
Still, it will mean a big discontinuity for programmers. Finally, there will be more changes to the browser's appearance. Some have called it a Chrome copy--features include a merged location bar and search bar, removing the status bar across the bottom, and adding an option to put the tabs at the very top of the browser, all features introduced with Chrome. Lilly, though, bridles at the Chrome-copy idea. We're trying to give space to the content.
Be respectful, keep it civil and stay on topic. We delete comments that violate our policy , which we encourage you to read. All other browsers support CSS text-overflow:ellipsis; , but Firefox does not.
Even FF4 won't support it. Someone managed to hack a way to do it using -moz-binding , and many sites have been using it since then.
This hack will cease to work in FF4. See my question on this topic here: text-overflow:ellipsis in Firefox 4? But other than that one thing, pretty much everything else new in Firefox 4 - certainly from the perspective of the rendering engine -- is an incremental upgrade from FF3.
I guess you can't do this very effectively with other browsers. The major differences between the two are going to be more along the lines of new elements, properties and APIs and not basic properties as you mention.
Any smaller design or layout problems were solved long ago or, if one were to be fixed, probably rare. It's not like IE where there are issues not only between versions but within versions. Regardless of what's been posted thus far, be careful because I've already noticed several differences in rendering -- specifically with vertical spacing and inline list elements. In my case, the difference is actually quite huge since this impacts the look of the top menu element. Just something to consider; the transition isn't quite as rosy as the prior posts would perhaps lead you to believe Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Firefox 3 vs Firefox 4 development difference? Ask Question. Asked 10 years, 8 months ago. Active 10 years, 2 months ago.
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