Firefox ESR

Firefox ESR

Firefox ESR (Extended Support Release) is a version of the Firefox web browser built for large organizations that need extended support timelines. It retains the same features and performance of regular Firefox but stays on the same version for over a year for stability.
Firefox ESR screenshot

Firefox ESR (Extended Support Release)

Firefox ESR (Extended Support Release) is a version of the Firefox web browser built for large organizations that need extended support timelines. It retains the same features and performance of regular Firefox but stays on the same version for over a year for stability.

What is Firefox ESR?

Firefox ESR (Extended Support Release) is a version of the Firefox web browser that is designed specifically for use by large organizations and enterprises. It retains all the same features and performance as the regular Firefox browser but is optimized for extended stability and support over an extended period of time.

With Firefox ESR, organizations can continue using the same baseline Firefox version for over a year without needing to upgrade or migrate to new versions as they are released. This allows large enterprises to standardize their web browser across the organization without having to continually deploy new browser versions and retest web applications.

Some key highlights of Firefox ESR:

  • Stays on a single Firefox version for over 12 months or more for stability.
  • Receives critical security updates during the support period.
  • Has the same features and interface as the Firefox browser that consumers/individuals use.
  • Updated less frequently - a new ESR version comes out roughly once per year.
  • Each ESR version receives security and stability updates until the end of the support period.
  • Used by large companies, governments, schools, and other organizations that need extended stable browser support.
  • Allows system administrators to manage Firefox rollouts and updates centrally through policies.

By using Firefox ESR rather than the consumer version of Firefox, large IT departments can minimize changes, test new browser versions less often, and generally require less internal browser support resources over time.

Firefox ESR Features

Features

  1. Tabbed browsing
  2. Private browsing
  3. Add-on support
  4. Web compatibility
  5. Security and privacy
  6. Customizable interface
  7. Sync across devices

Pricing

  • Open Source
  • Free

Pros

Fast and responsive

Extensive customization

Strong privacy controls

Open source code

Supports many add-ons

Familiar interface

Cons

High memory usage

Some compatibility issues

Limited native app integration

Slower release cycle

Less frequent updates

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