Mozilla to Roll Out Firefox 64

Learn about updates for both users and developers in new version of popular browser
12 December 2018   453

Mozilla has released the Firefox 64 browser. The developers have eliminated 30 vulnerabilities, among which 21 are critical. The development team added operations with multiple tabs, improved browser performance for macOS and Linux platforms, and also discontinued support for Symantec certificates.

New in Firefox 64 for users:
Support for news feeds (RSS) and live bookmarks has been discontinued - the company has proposed replacing them with extensions or third-party aggregators. In addition, Firefox has stopped supporting Symantec TLS certificates. This is due to incorrect preparation of reports and other irregularities in the work of the company, for example, issuing EV certificates without checks.

The about: crashes page has been redesigned. It displays sent and unsent reports about browser crashes, while the user can delete any of them from the hard disk.

  • Other innovations:
  • Task Manager. It displays the resource usage of each tab.
  • Increased the speed of work. When creating browser versions for the macOS and Linux platforms, the Clang compiler was used with the optimization mode during linking.
  • Link Exchange in Windows. Users can share sites that are viewed on social networks using the Share button in the context menu of a web page.
  • Remove add-ons from the toolbar. To do this, call the context menu (right-click on the add-on icon).
  • Firefox configuration profiles for macOS. They are set up by corporate clients for internal use.
  • Tabs. In the new version, the user can select multiple tabs and move, close or add them to the bookmarks.

Firefox 64 updates for developers:

  • The ability to work simultaneously with three CSS grids in the interface for viewing multi-layered layout of elements (CSS Grid Inspector).
  • JavaScript syntax highlighting in the command line of the web console.
  • Changes in CSS, including support for CSS scrollbars and -webkit-appearance.
  • Displays the contrast value of the text relative to the background when you hover the cursor in the Accessibility Inspector panel.

Get more info at official docs.

PyOxidizer to be Available

Project, allowing  package a Python project in the form of a self-contained executable file is written in Rust and has MPL license
25 June 2019   179

The first release of the PyOxidizer utility is available, which allows you to package a Python project in the form of a self-contained executable file, including the Python interpreter and all the necessary libraries and resources. Such files can run in environments without the Python toolkit installed or regardless of the availability of the required version of Python. PyOxidizer can also generate statically related executables that are not associated with system libraries. The project code is written in the Rust language and is distributed under the MPL (Mozilla Public License) 2.0 license.

The project is based on the same-name module for the Rust language, which allows you to embed a Python interpreter into Rust programs to run Python scripts in them. PyOxidizer has now gone beyond the add-on for Rust and is positioned as a tool available to a wider audience for building and distributing self-contained Python packages. For those who do not need to distribute applications in the form of an executable file, PyOxidizer provides opportunities for generating libraries suitable for linking with any applications for embedding the Python interpreter and the necessary set of extensions in them.

For end users, delivering a project in the form of a single executable file greatly simplifies installation and eliminates the work of selecting dependencies, which is important, for example, for complex Python projects, such as video editors. For application developers, PyOxidizer allows you to save time on organizing the delivery of an application without having to use different tools for building packages for different operating systems.

The use of the proposed builds also has a positive effect on performance - files generated in PyOxidizer run faster than using system Python by eliminating imports and defining basic modules. In PyOxidizer, modules are imported from memory - all built-in modules are immediately loaded into memory and then used without accessing the disk). In tests, application startup time using PyOxidizer is approximately halved.

From already existing similar projects it is possible to note: PyInstaller (unpacks the file into a temporary directory and imports modules from it), py2exe (tied to the Windows platform and requires distribution of several files), py2app (tied to macOS), cx-freeze (requires separate packaging of dependencies ), Shiv and PEX (form a package in zip format and requires Python in the system), Nuitka (compiles the code, not the interpreter embeds), pynsist (tied to Windows), PyRun (proprietary development without explanation of the principles of operation).

At the current stage of development, PyOxidizer has already implemented the main functionality for generating executable files for Windows, macOS and Linux. Of the currently unavailable features, there is a lack of a typical build environment, the impossibility of generating packages in the MSI, DMG and deb / rpm formats, problems with packaging projects that include complex extensions in the C language, and the lack of commands to maintain delivery ("pyoxidizer add" and "pyoxidizer upgrade"), limited support for Terminfo and Readline, lack of support for releases other than Python 3.7, lack of support for resource compression, inability to cross-compile.