Mozilla Firefox Extended Support Release (ESR) is, essentially, a slower-moving, more stable version of the regular browser. While standard Firefox sees a major release every 6 weeks or so, Firefox ESR will only move a whole release number every 54 weeks, meaning that you're much less likely to find some new tweak has broken your favourite extensions.
- It is advised to use the up-to-date Firefox Quantum for normal web browsing and use 52.9 ESR only with our web player and other trusted sites as it stopped receiving backported security.
- Mozilla Firefox Extended Support Release (ESR) is, essentially, a slower-moving, more stable version of the regular browser. While standard Firefox sees a major release every 6 weeks or so, Firefox ESR will only move a whole release number every 54 weeks, meaning that you're much less likely to find some new tweak has broken your favourite extensions.
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Of course this doesn't mean the browser will see no movement at all for an entire year. Every time standard Firefox is updated, Firefox ESR will incorporate all the latest security updates in its own minor upgrade, so the program will be every bit as safe to use: you just won't have all the latest features.
If you're a home user then this probably means that Firefox ESR isn't for you. Firefox ESR will remain at v68 for many months, so you'll be missing out on all the new interface tweaks, tab options and assorted browser speeds which Mozilla have added in the past few months.
If you're managing Firefox deployment in a business, though, or anywhere else with a large number of users, then it's a different story. You really don't want to have to get into huge firefights because a browser update has caused problems, stability is far more important - and if that sounds like you then opting for Firefox ESR could be a very good idea.
Verdict:
If you can live without the latest browser features then Firefox ESR will repay you with improved stability and fewer compatibility issues
![Mac Mac](/uploads/1/2/8/1/128101788/100045141.png)
Firefox version 78 is the last supported Firefox version for Mac users of OS X 10.9 Mavericks, OS X 10.10 Yosemite and OS X 10.11 El Capitan. These users will be moved to the Firefox Extended Support Release (ESR) channel by an application update. This will provide security updates until the next ESR update in July 2021, after which the affected users will no longer receive security updates.
While Apple does not have a public policy governing security updates for older OS X releases, their ongoing practice has been to support the most recent three releases. The last security update applicable to OS X 10.11 was made available in July 2018. Unsupported operating systems do not receive security updates, have known exploits and can be dangerous to use, which makes it difficult to maintain Firefox on those versions.
Firefox 45 Esr Download
Up until July 2021, we will be updating affected users with critical security updates through the Firefox ESR channel to help retain the best possible security. After this, no security updates will be provided.
Mozilla Firefox 52.9.0 Esr Download For Mac
If you want to keep your Firefox version up to date, you will need to upgrade your operating system to macOS 10.12 or higher. Older versions that are not supported by Apple are unreliable and unsafe to use, which also makes it difficult to maintain Firefox on those versions.