An open security extension for browsers that starts from a conservative trust level for unclassified sites and lets the user decide which ones may run scripts. Permissions can be set per site, and the same component ships inside the Tor Browser. Version 13.6.36.

An open source browser project maintained mainly by Google, with core code under a permissive licence and test oriented builds published alongside release channels. Design documents, architecture notes and test material sit next to the source, across Windows, macOS and Linux.

Waterfox is a cross-platform browser on the Gecko engine with built-in content filtering and vertical tree tabs, and tabs that can be unloaded by hand. Version 6.7.4 brought RSS and live bookmarks back, and 6.7.5 added a subscription manager.

Colibri replaces tabs with Links, a saved list that follows the account across machines, groups entries with Lists and reads subscriptions through Feeds, on a deliberately thin interface; note that the last build dates from December 2021.

Two mailboxes, four chat tools and three document suites, each logged in separately and arranged like a taskbar. Spaces separate work from home, badges show unread counts, and the engine underneath was replaced this year.

Min treats the browser as something to be reduced rather than expanded: one address bar for search, navigation and quick arithmetic, tabs that fade when idle, and a focus mode that clears the screen. Open source, light on memory, three desktop platforms.

The browser arms race keeps eating memory, and not everyone needs the heavy equipment. Falkon starts quickly, loads pages responsively and stays restrained on memory, while still shipping blocking rules, vertical tabs and a feed reader.

The mouse is the default accessory of a browser, and for people who live on the keyboard, reaching for it is itself an interruption. qutebrowser turns navigation into typed commands: press a key, every link gets a label, type the label.

For most people the first browser they install is still Google Chrome. Pages are tested against it before anywhere else, startup and rendering stay fast, and the extension store is the largest of its kind. Sign in and bookmarks, passwords and settings follow you to every device, while the old extension format finally left the store at the end of August 2026.

Ungoogled Chromium patches the Chromium source at build time, replacing company domains with invalid ones and blocking internal requests, and publishes every change as a readable patch.

Pale Moon is an independently maintained browser with its own Goanna engine, no telemetry and a surviving XUL extension system that lets add-ons reshape the interface.

An old name in the KDE line that still does two jobs at once: pages rendered by a modern engine, and a file manager that borrows most of the desktop's abilities, including a working client for remote directories that behaves like a local folder.

Thorium keeps the Chromium engine but changes how it is compiled, ships per instruction set, and turns on parallel downloads, full addresses and privacy defaults.

Blisk is built on Chromium for web development rather than daily browsing. It carries a hundred device profiles, shows desktop and mobile views side by side with shared scrolling, reloads on save and reports script errors as they happen.

Slimjet is built on an open-source browser core and puts the usual add-ons inside the program: ad blocking, a download manager, video grabbing, screenshots and mouse gestures all work on first start. Free for personal and commercial use.