It has to do with Orion letting the sites still run in the background while on another tab. Other browsers have the option to disable that.
The websites I surfed on usually consists of those with a live chat as upwork and sites running on React (Next.js)
Vlad Other than the one memory runaway example that I provided that was Mojave-specific (also reproducible under Catalina but for some reason at a much lower level), I agree there is a gap. I understand that you need a concise set of steps to reproduce so that you can investigate and fix. We don't have that. However please understand that many users consistently experience high memory usage when Orion is left running for a while but we're not sure the exact steps that lead up to that situation as it typically takes place over a several days.
However, as my screen capture shows there is a leak and what appear to be multiple zombie processes. I had no windows/tabs open at that moment in the session and yet there were still 13 Web Content processes and Orion's main process was using 3GB of memory.
What we need -- what I was looking for -- is some advice or additional tools to bridge the gap. As I noted I'm happy to do the legwork but it's unclear to me (and it appears for others as well) how to approach this problem when things start out great but slowly blow up after 2-3 days of browsing.
Perhaps what we need to do is regroup on this. Like all the diagnostic tools most OS accumulate as they mature perhaps more tools are needed in Orion for end-users to help isolate issues like this for reporting. I will work on some ideas and post in Suggestions this weekend.
P.S.When you said there were 3K issues I believed you. Just surprised because previously I never would have guessed that amount from previous browsing of the Roadmap. Plus I just don't experience that many issues on a day-to-day basis. Yes I experience several Mojave-specific issues and this amorphous problem but it really doesn't feel like a browser with 3K open issues...
Xytronix Your issues may be different than mine and yours more easily reproduced. Can you share more details? For example if you open those 14 tabs one at a time, how much memory does each site take? Are there one or two that dominate? For those that seem high, can you show memory usage with just that site open in each of Safari and Orion side-by-side?
Subject: High RAM Usage Issue with Orion Browser Installation
Dear Orion Support Team,
I am reaching out to report an unusual issue with RAM usage in the Orion browser, which I recently installed on my device.
Despite having only one extension active—Ghostery, installed via the Chrome Web Store and taking up around 300 MB of storage—the browser displays a progressively increasing RAM consumption. With no webpages open, Orion initially starts at approximately 500 MB of RAM but then gradually rises. Within two minutes, the usage reaches around 4 GB, and at times it has escalated to 9, 10, or even 11 GB with only one or two pages open.
This behavior seems abnormal, particularly for a fresh installation. I have attempted various solutions, but the issue persists. Could you please provide any guidance on addressing this situation? Additionally, I would appreciate knowing if this is a known problem or if there may be specific compatibility issues on my system.
Thank you for your attention and any support you can provide.
Best regards,
Matteo
I would also like to mention that I expected Orion to perform as advertised, particularly in terms of efficiency. Currently, however, it is the least RAM-efficient browser I have encountered. I had hoped it would fulfill its promise of being extremely resource-efficient, but as it stands, it falls far short in this regard. I even tried reinstalling and adjusting settings, but the problem remains unresolved.
Orion v129
Sequoia (15)
Are you able to reproduce this issue on a fresh Orion profile (File -> Profiles -> New Profile...) without installing Ghostery? This would help us figure out whether this is an issue with Orion or with Ghostery.
I tested a fresh Orion profile with Ghostery enabled and I was not able to get my memory usage to balloon as was described in the report.
pit104s Orion has minimal memory footprint out of the box. The moment you install a first extension you may be introducing things that affect memoery usage that are out of our control. If you want to make your report useful to us, please follow instructions from this post: https://orionfeedback.org/d/4480-check-memory-usage/54
Hello,
I recently switched from Arc to Orion, but it appears to consume more memory even with fewer tabs open. I have also disabled the add blocker list. Tomorrow, Orion was using over 12 GB of memory with 10-15 tabs open, while Arc, with 20+ tabs and 5-6 pinned tabs, I have over 100 suspended tabs in a folder, and arc was using 8-9 GB of RAM.
Therefore, I decided to conduct a one-on-one comparison to determine if Orion is equal to Arc, but sometimes consumes more memory. Arc retains the same tabs from the previous day, while Orion retains approximately 20 tabs.
I also compared Orion to Safari, and Orion consumed slightly more memory. I noticed a lagging performance while using Orion for both comparisons.
Every time I use I Orion I get it using high memory notification from clean my mac. Mostly it happens to me when I'm using Figma, but never happens with any browser.
Orion vs Safari - https://youtu.be/6BYW0762iYM
Orion vs Arc - https://youtu.be/posA-BF-D5g
Despite liking Orion, memory optimization is the most important priority.
OmkarBirje I conducted a test using the browser without any extensions, and it performed well with no lag, even though I had over 40 tabs open. In comparison, Arc had only 4-5 tabs open.
The memory usage was as follows: Orion Browser used 7.18 GB, while Arc used 5.65 GB.
Based on this, I believe that using this browser without extensions allows it to function effectively.
But after using it for a long time this is the result 
After checking the Activity Monitor, I concluded that open tabs consume a significant amount of memory. For instance, the kit.com tab was using 1.2 GB of memory and that usage kept increasing as I used the email editor there for an hour. This was the case for all the tabs.
If you're experiencing similar high memory usage issues, the best solution is to enable Low Power Mode, which should help address the problem.
I appreciate that they did not suspend pinned tabs, allowing important tabs to remain active. After three hours of continuous use, I noticed that memory usage did not exceed 5 GB.
